Copper-Catalyzed Decarboxylative Alkylation of Terminal Alkynes
作者:Changqing Ye、Yajun Li、Hongli Bao
DOI:10.1002/adsc.201700798
日期:2017.11.10
alkylation of terminal alkynesundermild reaction conditions has been reported. Various alkyl diacyl peroxides were applied as the alkyl source for the formation of C(sp3)−C(sp) bond. A range of terminal alkynes including arylalkynes and alkyl alkynes delivered the alkylated internal alkynes with good to high performances. Mechanism studies suggested that this reaction involves a free radical pathway.
Conversion of Bromoalkenes into Alkynes by Wet Tetra-<i>n</i>-butylammonium Fluoride
作者:Masaru Okutani、Yuji Mori
DOI:10.1021/jo802101a
日期:2009.1.2
Tetra-n-butylammonium fluoride was found to be a mild and efficient base for the elimination reaction of bromoalkenes. Treatment of 1,1-dibromoalkenes, (Z)-1-bromoalkenes, and internal bromoalkenes with 5 equiv of TBAF center dot 3H(2)O in DMF yielded terminal and internal alkynes in high yields without undue regard to the presence of water.