Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The first example of the generation of azomethine ylides from a fluorocarbene : 1,3-Cyclization and 1,3-dipolar cycloaddition. / Konev, Alexander S.; Novikov, Mikhail S.; Khlebnikov, Alexander F.
в: Tetrahedron Letters, Том 46, № 48, 28.11.2005, стр. 8337-8340.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - The first example of the generation of azomethine ylides from a fluorocarbene
T2 - 1,3-Cyclization and 1,3-dipolar cycloaddition
AU - Konev, Alexander S.
AU - Novikov, Mikhail S.
AU - Khlebnikov, Alexander F.
PY - 2005/11/28
Y1 - 2005/11/28
N2 - The reaction of Schiff bases with fluorocarbene, generated by reduction of dibromofluoromethane with active lead in the presence of Bu4NBr under ultrasound irradiation, involves the formation of fluoro-substituted azomethine ylides which undergo cyclization into aziridines. 1,3-Cyclization of ylides, generated from N-arylimines of benzaldehyde, proceeds stereoselectively. When carrying out the reaction of Schiff bases with fluorocarbene in the presence of dimethyl maleate or dimethyl acetylenedicarboxylate, the products of dehydrofluorination of the primary adducts of the 1,3-dipolar cycloaddition of fluoro-substituted azomethine ylides to multiple bonds of dipolarophiles were obtained. In the case of the reaction of N-alkylimines of benzaldehyde the cycloaddition of ylides to dimethyl maleate completely suppressed the cyclization to aziridines.
AB - The reaction of Schiff bases with fluorocarbene, generated by reduction of dibromofluoromethane with active lead in the presence of Bu4NBr under ultrasound irradiation, involves the formation of fluoro-substituted azomethine ylides which undergo cyclization into aziridines. 1,3-Cyclization of ylides, generated from N-arylimines of benzaldehyde, proceeds stereoselectively. When carrying out the reaction of Schiff bases with fluorocarbene in the presence of dimethyl maleate or dimethyl acetylenedicarboxylate, the products of dehydrofluorination of the primary adducts of the 1,3-dipolar cycloaddition of fluoro-substituted azomethine ylides to multiple bonds of dipolarophiles were obtained. In the case of the reaction of N-alkylimines of benzaldehyde the cycloaddition of ylides to dimethyl maleate completely suppressed the cyclization to aziridines.
KW - Azomethine ylides
KW - Cyclization
KW - Cycloaddition
KW - Fluoroaziridines
KW - Fluorocarbene
UR - http://www.scopus.com/inward/record.url?scp=27644570998&partnerID=8YFLogxK
U2 - 10.1016/j.tetlet.2005.09.165
DO - 10.1016/j.tetlet.2005.09.165
M3 - Article
AN - SCOPUS:27644570998
VL - 46
SP - 8337
EP - 8340
JO - Tetrahedron Letters
JF - Tetrahedron Letters
SN - 0040-4039
IS - 48
ER -
ID: 28250336