Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions
Тип публикации: Journal Article
Дата публикации: 2007-10-01
scimago Q3
wos Q3
БС2
SJR: 0.333
CiteScore: 3.7
Impact factor: 1.9
ISSN: 00221139, 18733328
Organic Chemistry
Biochemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Environmental Chemistry
Краткое описание
1,5-Disubstituted 3-trifluoromethylpyrazoles were reacted with N -bromosuccinimide in DMF at room temperature or 70–80 °C for 1–2 h to afford the corresponding 4-bromo-substituted pyrazoles 2 in 95–99% yields. The microwave-assisted Stille coupling reactions of 2 with arylstannanes having a substituent on the benzene ring and allylstannane in refluxing CH 3 CN in the presence of Pd(PPh 3 ) 4 provided the corresponding 1,4,5-trisubstituted 3-trifluoromethylpyrazoles 3 in 75–98% yields.
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Jeon S. S. et al. Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions // Journal of Fluorine Chemistry. 2007. Vol. 128. No. 10. pp. 1191-1197.
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Jeon S. S., Choi J. H., Kim B. S., Jeong I. T. Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions // Journal of Fluorine Chemistry. 2007. Vol. 128. No. 10. pp. 1191-1197.
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TY - JOUR
DO - 10.1016/j.jfluchem.2007.04.029
UR - https://doi.org/10.1016/j.jfluchem.2007.04.029
TI - Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions
T2 - Journal of Fluorine Chemistry
AU - Jeon, Sung Sook
AU - Choi, Ji He
AU - Kim, Bum Soo
AU - Jeong, I T
PY - 2007
DA - 2007/10/01
PB - Elsevier
SP - 1191-1197
IS - 10
VL - 128
SN - 0022-1139
SN - 1873-3328
ER -
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@article{2007_Jeon,
author = {Sung Sook Jeon and Ji He Choi and Bum Soo Kim and I T Jeong},
title = {Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions},
journal = {Journal of Fluorine Chemistry},
year = {2007},
volume = {128},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.jfluchem.2007.04.029},
number = {10},
pages = {1191--1197},
doi = {10.1016/j.jfluchem.2007.04.029}
}
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MLA
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Jeon, Sung Sook, et al. “Synthesis of novel 1,4,5-trisubstituted 3-trifluoromethylpyrazoles via microwave-assisted Stille coupling reactions.” Journal of Fluorine Chemistry, vol. 128, no. 10, Oct. 2007, pp. 1191-1197. https://doi.org/10.1016/j.jfluchem.2007.04.029.