518061-69-3Relevant articles and documents
Triethylborane-induced radical reaction of alkynylgallium with α-halo carbonyl compounds
Usugi, Shin-ichi,Yorimitsu, Hideki,Shinokubo, Hiroshi,Oshima, Koichiro
, p. 2687 - 2690 (2002)
Treatment of terminal acetylenes with butyllithium, followed by an addition of gallium trichloride, afforded the corresponding alkynylgallium reagents. The reaction of the resulting alkynylgallium with α-halo carbonyl compounds in the presence of triethylborane as a radical initiator provided β,γ-acetylenic carbonyl compounds in good yields.
Alkynylation of α-halocarbonyl compounds - A Stille-type cross-coupling for the formation of C(sp)-C(sp3) bonds under neutral conditions
Shi, Wei,Liu, Chao,Yu, Zai,Lei, Aiwen
, p. 2342 - 2344 (2008/02/11)
A direct alkynylation of readily available α-halo esters and amides with high yields is described herein; a distinct switch from diyne formation to alkynylation products was attained under neutral conditions. The Royal Society of Chemistry.