Transition-metal catalyzed regioselective addition of PhMe2SiBEt3Li and Bu3SnBEt3Li to acetylenic compounds in the presence of methanol
…, K Wakamatsu, T Nonaka, W Tűckmantel, K Oshima…
Index: Nozaki, Kyoko; Wakamatsu, Kuni; Nonaka, Tsuyoshi; Tueckmantel, Werner; Oshima, Koichiro; Utimoto, Kiitiro Tetrahedron Letters, 1986 , vol. 27, # 18 p. 2007 - 2010
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Citation Number: 49
Abstract
Treatment of acetylenic compounds with PhMe 2 SiBEt 3 Li in the presence of a transition-metal catalyst affords vinylsilanes in good yields. Coexistence of methanoi as a proton source is essential for the completion of the reaction. ... The reversible nature of the reaction of PhMe 2 SiBEt 3 Li with acetylenic compounds has been clearly demonstrated by the following result. Treatment of the reaction mixture derived from 4-benzyloxy-1-butyne and PhMe 2 SiBEt 3 Li with ...