Journal of Organic Chemistry, volume 37, issue 21, pages 3216-3220
Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media
Publication type: Journal Article
Publication date: 1972-10-01
Journal:
Journal of Organic Chemistry
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 3.6
ISSN: 00223263, 15206904
Organic Chemistry
Top-30
Citations by journals
|
1
2
3
|
|
|
Journal of Heterocyclic Chemistry
3 publications, 9.09%
|
|
|
Tetrahedron Letters
2 publications, 6.06%
|
|
|
Bioorganic and Medicinal Chemistry
2 publications, 6.06%
|
|
|
Journal für praktische Chemie
2 publications, 6.06%
|
|
|
Cumulative Index of Heterocyclic Systems
2 publications, 6.06%
|
|
|
Molecules
1 publication, 3.03%
|
|
|
Photochemical and Photobiological Sciences
1 publication, 3.03%
|
|
|
Journal of Pharmaceutical and Biomedical Analysis
1 publication, 3.03%
|
|
|
Journal of Physical Chemistry A
1 publication, 3.03%
|
|
|
Chemischer Informationsdienst
1 publication, 3.03%
|
|
|
Journal of Physical Organic Chemistry
1 publication, 3.03%
|
|
|
Journal of Organic Chemistry
1 publication, 3.03%
|
|
|
Journal of the Chemical Society Chemical Communications
1 publication, 3.03%
|
|
|
Phosphorus, Sulfur and Silicon and the Related Elements
1 publication, 3.03%
|
|
|
Advances in Physical Organic Chemistry
1 publication, 3.03%
|
|
|
Advances in Heterocyclic Chemistry
1 publication, 3.03%
|
|
|
Methods in Enzymology
1 publication, 3.03%
|
|
|
Synthesis
1 publication, 3.03%
|
|
|
Russian Chemical Reviews
1 publication, 3.03%
|
|
|
1
2
3
|
Citations by publishers
|
2
4
6
8
10
12
14
|
|
|
Wiley
13 publications, 39.39%
|
|
|
Elsevier
12 publications, 36.36%
|
|
|
American Chemical Society (ACS)
2 publications, 6.06%
|
|
|
Multidisciplinary Digital Publishing Institute (MDPI)
1 publication, 3.03%
|
|
|
Springer Nature
1 publication, 3.03%
|
|
|
Royal Society of Chemistry (RSC)
1 publication, 3.03%
|
|
|
Taylor & Francis
1 publication, 3.03%
|
|
|
Thieme
1 publication, 3.03%
|
|
|
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 3.03%
|
|
|
2
4
6
8
10
12
14
|
- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
{"yearsCitations":{"type":"bar","data":{"show":true,"labels":[1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024],"ids":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"codes":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"imageUrls":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"datasets":[{"label":"Citations number","data":[2,0,0,0,2,1,0,0,0,0,0,4,1,0,0,0,0,1,0,1,0,3,0,0,0,2,0,0,1,0,1,0,0,0,1,0,0,1,1,1,4,0,1,1,1,0,0,0,0,0,2,1],"backgroundColor":["#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6"],"percentage":["6.06",0,0,0,"6.06","3.03",0,0,0,0,0,"12.12","3.03",0,0,0,0,"3.03",0,"3.03",0,"9.09",0,0,0,"6.06",0,0,"3.03",0,"3.03",0,0,0,"3.03",0,0,"3.03","3.03","3.03","12.12",0,"3.03","3.03","3.03",0,0,0,0,0,"6.06","3.03"],"barThickness":null}]},"options":{"indexAxis":"x","maintainAspectRatio":true,"scales":{"y":{"ticks":{"precision":0,"autoSkip":false,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false},"x":{"ticks":{"stepSize":1,"precision":0,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false}},"plugins":{"legend":{"position":"top","labels":{"font":{"family":"Montserrat"},"color":"#000000"}},"title":{"display":true,"text":"Citations per year","font":{"size":24,"family":"Montserrat","weight":600},"color":"#000000"}}}},"journals":{"type":"bar","data":{"show":true,"labels":["Journal of Heterocyclic Chemistry","Tetrahedron Letters","Bioorganic and Medicinal Chemistry","Journal f\u00fcr praktische Chemie","Cumulative Index of Heterocyclic Systems","Molecules","Photochemical and Photobiological Sciences","Journal of Pharmaceutical and Biomedical Analysis","Journal of Physical Chemistry A","Chemischer Informationsdienst","Journal of Physical Organic Chemistry","Journal of Organic Chemistry","Journal of the Chemical Society Chemical Communications","Phosphorus, Sulfur and Silicon and the Related Elements","Advances in Physical Organic Chemistry","Advances in Heterocyclic Chemistry","Methods in Enzymology","Synthesis","Russian Chemical Reviews"],"ids":[3189,6133,1162,25509,42258,1770,2532,23304,15255,25955,16036,8697,25348,12904,14989,7227,24566,10934,23802],"codes":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"imageUrls":["\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/MjH1ITP7lMYGxeqUZfkt2BnVLgjkk413jwBV97XX_medium.webp","\/storage\/images\/resized\/voXLqlsvTwv5p3iMQ8Dhs95nqB4AXOG7Taj7G4ra_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/iLiQsFqFaSEx6chlGQ5fbAwF6VYU3WWa08hkss0g_medium.webp","\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/iLiQsFqFaSEx6chlGQ5fbAwF6VYU3WWa08hkss0g_medium.webp","\/storage\/images\/resized\/leiAYcRDGTSl5B1eCnwpSGqmDEUEfDPPoYisFGhT_medium.webp","\/storage\/images\/resized\/5YZtvLvkPZuc2JHOaZsjCvGSHFCuC3drUwN3YAc5_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/xqixcltwJYe6H8Uco2JbAFfIOzt7UNKH0OcPOPzO_medium.webp","\/storage\/images\/resized\/9Mus3KG1Tkd7Bwaurt8H3RwWh0CxRlGoO6ng9UK1_medium.webp"],"datasets":[{"label":"","data":[3,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1],"backgroundColor":["#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6"],"percentage":[9.09,6.06,6.06,6.06,6.06,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03,3.03],"barThickness":13}]},"options":{"indexAxis":"y","maintainAspectRatio":false,"scales":{"y":{"ticks":{"precision":0,"autoSkip":false,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false},"x":{"ticks":{"stepSize":null,"precision":0,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false}},"plugins":{"legend":{"position":"top","labels":{"font":{"family":"Montserrat"},"color":"#000000"}},"title":{"display":true,"text":"Journals","font":{"size":24,"family":"Montserrat","weight":600},"color":"#000000"}}}},"publishers":{"type":"bar","data":{"show":true,"labels":["Wiley","Elsevier","American Chemical Society (ACS)","Multidisciplinary Digital Publishing Institute (MDPI)","Springer Nature","Royal Society of Chemistry (RSC)","Taylor & Francis","Thieme","Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii"],"ids":[11,17,40,202,8,123,18,135,9422],"codes":[0,0,0,0,0,0,0,0,0],"imageUrls":["\/storage\/images\/resized\/bRyGpdm98BkAUYiK1YFNpl5Z7hPu6Gd87gbIeuG3_medium.webp","\/storage\/images\/resized\/GDnYOu1UpMMfMMRV6Aqle4H0YLLsraeD9IP9qScG_medium.webp","\/storage\/images\/resized\/iLiQsFqFaSEx6chlGQ5fbAwF6VYU3WWa08hkss0g_medium.webp","\/storage\/images\/resized\/MjH1ITP7lMYGxeqUZfkt2BnVLgjkk413jwBV97XX_medium.webp","\/storage\/images\/resized\/voXLqlsvTwv5p3iMQ8Dhs95nqB4AXOG7Taj7G4ra_medium.webp","\/storage\/images\/resized\/leiAYcRDGTSl5B1eCnwpSGqmDEUEfDPPoYisFGhT_medium.webp","\/storage\/images\/resized\/5YZtvLvkPZuc2JHOaZsjCvGSHFCuC3drUwN3YAc5_medium.webp","\/storage\/images\/resized\/xqixcltwJYe6H8Uco2JbAFfIOzt7UNKH0OcPOPzO_medium.webp","\/storage\/images\/resized\/9Mus3KG1Tkd7Bwaurt8H3RwWh0CxRlGoO6ng9UK1_medium.webp"],"datasets":[{"label":"","data":[13,12,2,1,1,1,1,1,1],"backgroundColor":["#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6","#3B82F6"],"percentage":[39.39,36.36,6.06,3.03,3.03,3.03,3.03,3.03,3.03],"barThickness":13}]},"options":{"indexAxis":"y","maintainAspectRatio":false,"scales":{"y":{"ticks":{"precision":0,"autoSkip":false,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false},"x":{"ticks":{"stepSize":null,"precision":0,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":false}},"plugins":{"legend":{"position":"top","labels":{"font":{"family":"Montserrat"},"color":"#000000"}},"title":{"display":true,"text":"Publishers","font":{"size":24,"family":"Montserrat","weight":600},"color":"#000000"}}}},"yearsCitationsQuartiles":{"type":"bar","data":{"show":true,"labels":[1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024],"ids":[],"codes":[],"imageUrls":[],"datasets":[{"label":"Q4","backgroundColor":"rgb(221,90,78)","data":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"percentage":["0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0"]},{"label":"Q3","backgroundColor":"rgb(251, 163,83)","data":[1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"percentage":["3.03","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","3.03","0","0","0","3.03","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0"]},{"label":"Q2","backgroundColor":"rgb(232, 213, 89)","data":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,0,0,0,0,0,0,0,0,0,1,0],"percentage":["0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","3.03","6.06","0","0","0","0","0","0","0","0","0","3.03","0"]},{"label":"Q1","backgroundColor":"rgb(164, 207, 99)","data":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,1,1],"percentage":["0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","0","0","0","3.03","0","0","0","0","0","0","0","3.03","3.03"]},{"label":"Quartile not defined","backgroundColor":"#E5E7EB","data":[1,0,0,0,2,0,0,0,0,0,0,4,1,0,0,0,0,1,0,0,0,2,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,1,0,0,0,0,0,0,0],"percentage":["3.03","0","0","0","6.06","0","0","0","0","0","0","12.12","3.03","0","0","0","0","3.03","0","0","0","6.06","0","0","0","3.03","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","6.06","0","0","3.03","3.03","0","0","0","0","0","0","0"]}]},"options":{"indexAxis":"x","maintainAspectRatio":true,"scales":{"y":{"ticks":{"precision":0,"autoSkip":false,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":true},"x":{"ticks":{"stepSize":1,"precision":0,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":true}},"plugins":{"legend":{"position":"top","labels":{"font":{"family":"Montserrat"},"color":"#000000"}},"title":{"display":true,"text":"Citations quartiles by SCImago per year","font":{"size":24,"family":"Montserrat","weight":600},"color":"#000000"}}}},"yearsCitationsQuartilesWs":{"type":"bar","data":{"show":true,"labels":[1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024],"ids":[],"codes":[],"imageUrls":[],"datasets":[{"label":"Q4","backgroundColor":"rgb(221,90,78)","data":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"percentage":["0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0"]},{"label":"Q3","backgroundColor":"rgb(251, 163,83)","data":[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"percentage":["3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0"]},{"label":"Q2","backgroundColor":"rgb(232, 213, 89)","data":[0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,2,0],"percentage":["0","0","0","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","0","3.03","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","3.03","0","3.03","0","0","0","0","0","0","0","0","0","6.06","0"]},{"label":"Q1","backgroundColor":"rgb(164, 207, 99)","data":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,1],"percentage":["0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","3.03","3.03","0","3.03","0","0","0","0","0","0","0","0","3.03"]},{"label":"Quartile not defined","backgroundColor":"#E5E7EB","data":[1,0,0,0,2,0,0,0,0,0,0,4,1,0,0,0,0,1,0,0,0,2,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,1,0,0,0,0,0,0,0],"percentage":["3.03","0","0","0","6.06","0","0","0","0","0","0","12.12","3.03","0","0","0","0","3.03","0","0","0","6.06","0","0","0","3.03","0","0","3.03","0","0","0","0","0","0","0","0","0","0","0","6.06","0","0","3.03","3.03","0","0","0","0","0","0","0"]}]},"options":{"indexAxis":"x","maintainAspectRatio":true,"scales":{"y":{"ticks":{"precision":0,"autoSkip":false,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":true},"x":{"ticks":{"stepSize":1,"precision":0,"font":{"family":"Montserrat"},"color":"#000000"},"stacked":true}},"plugins":{"legend":{"position":"top","labels":{"font":{"family":"Montserrat"},"color":"#000000"}},"title":{"display":true,"text":"Citations quartiles by WoS per year","font":{"size":24,"family":"Montserrat","weight":600},"color":"#000000"}}}}}
Are you a researcher?
Create a profile to get free access to personal recommendations for colleagues and new articles.
Metrics
Cite this
GOST |
RIS |
BibTex |
MLA
Cite this
GOST
Copy
Hyatt J. A., Swenton J. S. Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media // Journal of Organic Chemistry. 1972. Vol. 37. No. 21. pp. 3216-3220.
GOST all authors (up to 50)
Copy
Hyatt J. A., Swenton J. S. Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media // Journal of Organic Chemistry. 1972. Vol. 37. No. 21. pp. 3216-3220.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/jo00986a005
UR - https://doi.org/10.1021/jo00986a005
TI - Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media
T2 - Journal of Organic Chemistry
AU - Hyatt, John A
AU - Swenton, John S
PY - 1972
DA - 1972/10/01 00:00:00
PB - American Chemical Society (ACS)
SP - 3216-3220
IS - 21
VL - 37
SN - 0022-3263
SN - 1520-6904
ER -
Cite this
BibTex
Copy
@article{1972_Hyatt,
author = {John A Hyatt and John S Swenton},
title = {Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media},
journal = {Journal of Organic Chemistry},
year = {1972},
volume = {37},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021/jo00986a005},
number = {21},
pages = {3216--3220},
doi = {10.1021/jo00986a005}
}
Cite this
MLA
Copy
Hyatt, John A., and John S Swenton. “Facile synthesis of 9H-pyrimido[4,5-b]indoles from photolysis of 8-phenyltetrazolo[1,5-c]pyrimidines in acidic media.” Journal of Organic Chemistry, vol. 37, no. 21, Oct. 1972, pp. 3216-3220. https://doi.org/10.1021/jo00986a005.