Synthesis of paddlanes possessing cyclophane shaft and cyclobutane blades
摘要:
1,2- And 1,2,4,5-paddlanes were successfully prepared by the intermolecular [2 + 2] photocycloaddition of o-divinyl- and 1,2,4,5-terravinylbenzenes, respectively. On the other hand, no desired paddlanes were obtained from pidivinyl- or 1,2,3-trivinylbenzene. The structural features of the obtained paddlanes were examined by UV and H-1 NMR spectroscopy. (C) 1997 Elsevier Science Ltd.
[EN] SYNTHESIS OF ARYL COMPOUNDS<br/>[FR] SYNTHÈSE DE COMPOSÉS ARYLE
申请人:BOULOS & COOPER PHARMACEUTICALS PTY LTD
公开号:WO2017027933A1
公开(公告)日:2017-02-23
A method for the synthesis of a aryl compound of Formula (1). Formula (1)
一种合成化合物公式为(1)的芳基化合物的方法。公式(1):
Efforts toward Distorted Spiropentanes
作者:Kuan-Jen Su、Jean-Luc Mieusset、Vladimir B. Arion、Wolfgang Knoll、Lothar Brecker、Udo H. Brinker
DOI:10.1021/jo1017298
日期:2010.11.5
tetrabromobenzene; the improved, one-step procedure now employs Suzuki−Miyaura cross-coupling conditions. Intermolecular cyclopropanation of 4 with dibromocarbene gave a series of gem-dibromide adducts. Intramolecular cyclopropanation of monoadduct 5, putatively by its methyllithium-generated cyclopropylidene(oid), produced compound 11, which features a highly distorted spiropentane having a C−C−C bond
1,2- And 1,2,4,5-paddlanes were successfully prepared by the intermolecular [2 + 2] photocycloaddition of o-divinyl- and 1,2,4,5-terravinylbenzenes, respectively. On the other hand, no desired paddlanes were obtained from pidivinyl- or 1,2,3-trivinylbenzene. The structural features of the obtained paddlanes were examined by UV and H-1 NMR spectroscopy. (C) 1997 Elsevier Science Ltd.
1,2,4,5-Tetravinylbenzene
作者:Theodor Schrievers、Udo H. Brinker
DOI:10.1055/s-1988-27561
日期:——
1,2,4,5-Tetravinylbenzene (5) is obtained by four-fold Wittig reaction of tetraformylbenzene (4) and methyltriphenylphosphonium bromide.