Formation of β,β-dihaloenones from halogenated tertiary alkynols
摘要:
Halogenated alkynols react with N-halosuccinimides and catalytic amounts of Koser's reagent to afford mixed beta,beta-dihaloenones, useful templates for aryl and alkyl substituted enones.
A systematic study on the Cadiot–Chodkiewicz cross coupling reaction for the selective and efficient synthesis of hetero-diynes
作者:Bhavani Shankar Chinta、Beeraiah Baire
DOI:10.1039/c6ra07308e
日期:——
99% selectivity for cross coupling. Excellent yields (upto 94%). Low basic reaction medium, high functional group tolerance. Use of green solvent water.
Copper Powder–Mediated Homocoupling Reactions of Iodoacetylenes to Synthesize Symmetrical 1,3-Butadiynes
作者:Song Xue、Ling-Guo Meng、Qing-Xiang Guo
DOI:10.1080/00397910802026568
日期:2008.6.20
Abstract A new route to synthesize symmetrical 1,3-butadiynes from iodoacetylenes in the presence of copper powder and pyridine was developed. Moderate to excellent yields were obtained through an efficient and simple process involving the copper powder without any further activation.