The indium-catalysed hydration of alkynes using substoichiometric amounts of PTSA as additive
作者:Qi Gao、Shenyan Li、Yingming Pan、Yanli Xu、Hengshan Wang
DOI:10.1016/j.tet.2013.03.079
日期:2013.5
A general, efficient and highly regioselective protocol using an indium(III) trifluoromethanesulfonate and PTSA (TsOH center dot H2O) catalytic system for the transformation of various alkynes to the corresponding ketones has been successfully developed. (C) 2013 Elsevier Ltd. All rights reserved.
A facile method for the preparation of functionalized 2,3-disubstituted-1,3-butadienes
作者:Lishan Zhu、Reuben D. Ricke
DOI:10.1016/0040-4039(91)80633-h
日期:1991.6
Functionalized 2,3-disubstituted-1,3-butadienes were readily prepared by reacting functionalized organozinc compounds with 1,4-dichloro-2-butyne or 1,4-ditosyloxy-2-butyne mediated by Cu(I) salts.
PREPARATION METHOD FOR CONJUGATED DIENE COMPOUND
申请人:DALIAN UNIVERSITY OF TECHNOLOGY
公开号:US20200048162A1
公开(公告)日:2020-02-13
The current invention belongs to the technical fields of fine chemicals and related chemistry, and provides a preparation method for butadiene derivatives. Arylacetylenes and derivatives using as raw materials react in an anhydrous organic solvent in the presence of a metal catalyst and an additive, and are converted into 2,3-disubstituted-1,3-butadiene derivatives. The current invention has some beneficial characteristics such as cheap and readily available raw material, mild reaction conditions, environmentally friendly property and possibility of realizing industrialization, and obtains the 1,3-butadiene derivatives in high yields. The 1,3-butadiene derivatives synthesized by this method can be further functionalized into various compounds which have potential applications in development and research of natural products, functional materials and fine chemicals.