中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-溴苯乙炔 | 2-bromo-1-ethynylbenzene | 766-46-1 | C8H5Br | 181.032 |
(2-溴苯乙炔基)三甲基硅烷 | 2-bromo-1-(trimethylsilylethynyl)benzene | 38274-16-7 | C11H13BrSi | 253.214 |
Homocoupling of terminal alkynes has been efficiently achieved using catalytic amounts of CuCl2 and DBU. This methodology could be extended to couple two different terminal alkynes together by taking one of the alkyne partners, preferably the electron rich alkyne, in five fold excess than the other.