A convenient synthesis of polyfluoroalkyl-substituted pyrazolo[1,5-a] pyridine, pyrrolo[1,2-b]pyridazine and indolizine derivatives
作者:Xue-chun Zhang、Wei-yuan Huang
DOI:10.1016/s0022-1139(97)00118-8
日期:1998.1
(1b) or N-amino-isoquinolinium iodide (1c), N-phenacylpyridazinium (4), N-phenacylpyridinium (6a–c), and N-phenacylisoquinolinium (6d) bromides in DMF to give poly(per)fluoroalkyl-substituted pyrazolo[1,5-a] pyridine (3), pyrrolo[l,2-a]pyridazine (5) and indolizine (7 and 8) derivatives, respectively.
Reaction of 1-alkylbenzimidazolium 3-ylides with ethyl 2,2-dihydropolyfluoroalkanoates
作者:Xue-chun Zhang、Wei-yuan Huang
DOI:10.1016/s0040-4020(98)00728-5
日期:1998.10
In the presence of base, ethyl 2,2-dihydropolyfluoroalkanoates(2) reacted with N-phenacyl(1a-1b), N-acetonyl(1c), N-ethoxycarbonylmethyl(1d) and N-(diethylaminocarbonyl-methyl) benzimidazole bromides(le) in DMF to give the corresponding pyrrolo[1,2-a]quinoxaline derivatives (3) respectively. When (2) was reacted with N-cyanomethyl benzimidazole bromides (1f-1g), fluoroalkyl substituted I-aryl pyrrole derivatives (4) were formed as the major products. (C) 1998 Elsevier Science Ltd. All rights reserved.
Bloshchitsa, F. A.; Burmakov, A. I.; Kunshenko, B. V., Journal of Organic Chemistry USSR (English Translation), 1986, vol. 22, p. 670 - 675
作者:Bloshchitsa, F. A.、Burmakov, A. I.、Kunshenko, B. V.、Piterskikh, I. A.、Alekseeva, L. A.、Yagupol'skii, L. M.
DOI:——
日期:——
BLOSHCHITSA, F. A.;BURMAKOV, A. I.;KUNSHENKO, B. V.;PITERSKIX, I. A.;ALEK+, ZH. ORGAN. XIMII, 1986, 22, N 4, 750-756
作者:BLOSHCHITSA, F. A.、BURMAKOV, A. I.、KUNSHENKO, B. V.、PITERSKIX, I. A.、ALEK+