Synthesis of Allenes via Nickel-Catalyzed Cross-Coupling Reaction of Propargylic Bromides with Grignard Reagents
作者:Qinghan Li、Hanmou Gau
DOI:10.1055/s-0031-1290365
日期:2012.3
method for the synthesis of terminal allenes from cross-coupling of propargylic bromide with Grignardreagent. The reaction of propargylic bromide with 1.2 equivalents of Grignardreagent mediated by Ni(acac)2 (2 mol%) and Ph3P (4 mol%) in THF may produce terminal allenes in good yields and high regioselectivities at room temperature. allenes - nickel - propargylic bromide - Grignardreagent - cross-coupling