Ethynyl-cyclohexanol: an efficient acetylene surrogate in Sonogashira coupling
摘要:
The Sonogashira coupling of aryl halides in the presence of 1-ethynyl-cyclohexanol as an acetylene source provides an efficient method for the synthesis of diarylacetylenes without the isolation of the appropriate arylacetylenes. (c) 2007 Elsevier Ltd. All rights reserved.
Ethynyl-cyclohexanol: an efficient acetylene surrogate in Sonogashira coupling
摘要:
The Sonogashira coupling of aryl halides in the presence of 1-ethynyl-cyclohexanol as an acetylene source provides an efficient method for the synthesis of diarylacetylenes without the isolation of the appropriate arylacetylenes. (c) 2007 Elsevier Ltd. All rights reserved.
The palladium-catalysed reductive addition of aryl iodides to propargyl alcohols: a route to /gg,/gg-diaryl allylic alcohols
作者:A. Arcadi、S. Cacchi、F. Marinelli
DOI:10.1016/s0040-4020(01)96756-0
日期:1985.1
The reaction of aryliodides with ethynyl and arylethynyl,dialky l carbinols in the presence of the tri- or dialkylammonium formate-palladium reagent provides a convenient route to γ,γ-diarylallylic alcohols. In the presence of arylethynyl,alkylcarbinols a lack of regioselectivity was observed and mixtures of ß,γ-, γ,γ-diarylallylic alcohols, and α,ß-unsatu rated ketones were obtained.
A novel regioselective annulation of propargylic alcohols with simple carbazoles for the construction of [3,2,1-jk]carbazole scaffolds is described to be the first example of intermolecular synthesis of [3,2,1-jk]carbazoles from simple carbazoles. In situ synthesis of propargyl alcohols from simple, cheap, and easily accessible ketones has also been developed during the one-pot synthesis of [3,2,1-jk]carbazoles
用于构建 [3,2,1- jk ] 咔唑支架的炔丙醇与简单咔唑的新型区域选择性环化被描述为从简单咔唑分子间合成 [3,2,1- jk ] 咔唑的第一个例子。在 [3,2,1- jk ] 咔唑的一锅法合成过程中,还开发了从简单、廉价且易于获得的酮原位合成炔丙醇的方法。
ARCADI, A.;CACCHI, S.;MARINELLI, F., TETRAHEDRON, 1985, 41, N 22, 5121-5131