Scope and Limitations of Functionalized Acetylenic Triflones in the Direct Alkynylation of C-H Bonds.
作者:Jason Xiang、Wanlong Jiang、P.L Fuchs
DOI:10.1016/s0040-4039(97)01577-3
日期:1997.9
Reactions of TIPS-substituted acetylenic triflones extends the versatility of the trifluoromethyl radical mediated C-H alkynylation reaction. Alkynes bearing acetylenic or propargylic oxygen functionality cannot be prepared, but silyl ethers or chlorides in remote positions may be carried through the reaction. Crown ethers are successfully monofunctionalized and distal bis-acetylenes may be employed
TIPS取代的炔属三氟甲酮的反应扩展了三氟甲基自由基介导的CH炔基化反应的多功能性。无法制备带有炔属或炔丙基氧官能团的炔烃,但在较远的位置可能会携带甲硅烷基醚或氯化物进行反应。冠醚已成功地单官能化,并且远端双乙炔可用于标题反应。©1997爱思唯尔科学有限公司。