Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines
Publication type: Journal Article
Publication date: 1996-04-01
scimago Q3
wos Q3
SJR: 0.334
CiteScore: 3.2
Impact factor: 1.5
ISSN: 00404039, 18733581
Organic Chemistry
Drug Discovery
Biochemistry
Abstract
Reaction of 2-aminopyridines with formaldehyde and electron rich alkenes permits synthesis of pyridopyrimidines by formation of imines and subsequent addition to the alkenes in a formal aza Diels Alder reaction. The structure of the cyclic amidine products is confirmed by single crystal X-ray analysis on a neutral amidine isolated from an aminopyridine substituted with an electron withdrawing trifluoromethyl group and of a trifluoroacetate salt of an amidine obtained from 2-aminopyridine, formaldehyde and indene. These structural studies permit the regio- and stereo-chemical outcome of these additions to be defined and compared with related processes.
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Total citations:
18
Citations from 2024:
1
(5.56%)
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GOST
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Mellor J. M. et al. Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines // Tetrahedron Letters. 1996. Vol. 37. No. 15. pp. 2615-2618.
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Mellor J. M., Merriman G. D., Rataj H., Reid G. Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines // Tetrahedron Letters. 1996. Vol. 37. No. 15. pp. 2615-2618.
Cite this
RIS
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TY - JOUR
DO - 10.1016/0040-4039(96)00341-3
UR - https://doi.org/10.1016/0040-4039(96)00341-3
TI - Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines
T2 - Tetrahedron Letters
AU - Mellor, John M
AU - Merriman, Glynn D
AU - Rataj, Helen
AU - Reid, Gillian
PY - 1996
DA - 1996/04/01
PB - Elsevier
SP - 2615-2618
IS - 15
VL - 37
SN - 0040-4039
SN - 1873-3581
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{1996_Mellor,
author = {John M Mellor and Glynn D Merriman and Helen Rataj and Gillian Reid},
title = {Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines},
journal = {Tetrahedron Letters},
year = {1996},
volume = {37},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/0040-4039(96)00341-3},
number = {15},
pages = {2615--2618},
doi = {10.1016/0040-4039(96)00341-3}
}
Cite this
MLA
Copy
Mellor, John M., et al. “Direct synthesis of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidines, by addition reactions with 2-aminopyridines.” Tetrahedron Letters, vol. 37, no. 15, Apr. 1996, pp. 2615-2618. https://doi.org/10.1016/0040-4039(96)00341-3.