145642-48-4Relevant academic research and scientific papers
Synthesis of 1,1,4,4-tetrabromo-2-butenes and related compounds via desilylation-bromination of silylated 1,3-butadiene derivatives
Xi, Zhenfeng,Liu, Xiaozhong,Lu, Jianming,Bao, Fengyu,Fan, Hongtao,Li, Zhiping,Takahashi, Tamotsu
, p. 8547 - 8549 (2004)
The combination of zirconocene-mediated coupling of silylated alkynes with a protonation-desilylation or bromination-desilylation process afforded otherwise unavailable butadiene derivatives. When (E,E)-2,3-dialkyl-1,4- bis(trimethylsilyl)-1,3-butadienes were treated with 3 equiv of Br2 in CH2Cl2, (E)-2,3-dialkyl-1,1,4,4-tetrabromo-2-butenes were obtained in excellent yields with perfect stereoselectivity.
Synthesis of multisubstituted 1,3-butadienes using the ruthenium-catalysed double addition of trimethylsilyldiazomethane to alkynylboronates
Morita, Ryotaro,Shirakawa, Eiji,Tsnchimoto, Teruhisa,Kawakami, Yusuke
, p. 1263 - 1268 (2007/10/03)
The ruthenium-catalysed double addition of trimethylsilyldiazomethane to alkynes developed by Dixneuf and co-workers was applied to the synthesis of 2-alkyl- or 2-aryl-3-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)1,4- bis(trimethylsilyl)-1,3-butadienes
One-pot conversion of terminal alkynes into gem-disubstituted-alkenes
Luo, Fen-Tair,Fwu, Shiang-Long,Huang, Wen-Shu
, p. 6839 - 6840 (2007/10/02)
A one-pot reaction of terminal alkynes with in situ generated hydrogen iodide and organozinc compounds in the presence of Pd(PPh3)4 provided a simple and useful method for the preparation of gem-disubstituted-alkenes.
