Direct 2-Pyridyl-alkylation of Benzyne with N-Alkylpyridinium Salts
作者:Ning-Xin Guo、Ji-Bao Xia、Yijin Su
DOI:10.1055/a-2050-6508
日期:——
A 2-pyridyl-alkylation of benzyne using N-alkylpyridinium salts has been developed under either photochemical or thermal conditions. This metal-free dicarbofunctionalization of benzyne undergoes a de Mayo-type process including cascade dearomative [3+2] cycloaddition and rearomative ring-opening reaction. An electron-deficient N-cyclic alkyl group was necessary. A formal ortho-C–H arylation of pyridine
已经在光化学或热条件下开发了使用N-烷基吡啶鎓盐对苯炔进行 2-吡啶基-烷基化。这种苯炔的无金属双碳官能化经历了 de Mayo 型过程,包括级联脱芳烃 [3+2] 环加成和再芳烃开环反应。缺电子的N-环状烷基是必需的。已经实现了吡啶的正式邻位-C-H芳基化。
LUH T.-Y.; LAI C. H.; LEI K. L.; TAM S. W., J. ORG. CHEM., 1979, 44, NO 4, 641-642
作者:LUH T.-Y.、 LAI C. H.、 LEI K. L.、 TAM S. W.
DOI:——
日期:——
Preparations and properties of caged polycyclic systems. 1. Pentacyclo[5.3.0.02,5.03,9.04,8]decane and pentacyclo[4.3.0.02,5.03,8.04,7]nonane derivatives
作者:Norman Bellamy Chapman、J. M. Key、Kenneth J. Toyne
DOI:10.1021/jo00836a062
日期:1970.11
DERIVES DE 5H,10H-IMIDAZO[1,2-a]INDENO[1,2-e]PYRAZINE-4-ONE, LEUR PREPARATION ET LES MEDICAMENTS LES CONTENANT
申请人:RHONE-POULENC RORER S.A.
公开号:EP0662971B1
公开(公告)日:1998-05-13
DERIVES DE 5H,10H-IMIDAZO 1,2-a]INDENO 1,2-e]PYRAZINE-4-ONE, LEUR PREPARATION ET LES MEDICAMENTS LES CONTENANT