作者:Florian Hoffmann、Jörg Wagler、Gerhard Roewer
DOI:10.1002/ejic.200900769
日期:2010.3
The selective synthesis of functional alkynylsilanes RC≡C-(SiMe 2 ) m -X (m = 1, 3) was investigated. Monofunctionalization with or without protecting groups gave moderate to good yields of alkynyldimethylmonosilanes RC≡CMe 2 SiX [R = Ph, X = Cl (1), NEt 2 (2), OMe (3), H (4), Br (5), I (6), Cp (8), C 5 H 4 Li (10), Ph (11); R = Pr, X = Ph (12)]. Compounds 4 and 8 were converted into the (alkyne)transition-metal
研究了功能性炔基硅烷 RC≡C-(SiMe 2 ) m -X (m = 1, 3) 的选择性合成。有或没有保护基团的单官能化得到中等至良好收率的炔基二甲基甲硅烷 RC≡CMe 2 SiX [R = Ph, X = Cl (1), NEt 2 (2), OMe (3), H (4), Br (5) , I (6), Cp (8), C 5 H 4 Li (10), Ph (11); R = Pr,X = Ph (12)]。化合物4和8分别转化为(炔)过渡金属配合物4·CP 2 Mo 2 (CO) 4 (13) 和8·Co 2 (CO) 6 (14),并通过X射线表征衍射。从 1-氯-2-(二乙氨基)四甲基乙硅烷 (Et 2 NMe 2 Si-Si-Me 2 Cl) 开始的硅烷链的逐步延伸和官能化产生了丙硅烷 Ph-(SiMe 2 ) 3 -X [X = NEt 2 (18), OMe (19)