A convenient procedure for the synthesis of enyne-allenes
摘要:
Bromoboration of 1-hexyne with BBr3 followed by treatment with 2-propanol produced alkenyl boronic ester 3. Subsequent Pd(0)-catalyzed cross-coupling with acetylenic zinc chlorides and iodination furnished enyne iodides 6, which were then converted to enyne-allenes 8 by a second Pd(0)-catalyzed reaction with allenic zinc chlorides.
A convenient procedure for the synthesis of enyne-allenes
摘要:
Bromoboration of 1-hexyne with BBr3 followed by treatment with 2-propanol produced alkenyl boronic ester 3. Subsequent Pd(0)-catalyzed cross-coupling with acetylenic zinc chlorides and iodination furnished enyne iodides 6, which were then converted to enyne-allenes 8 by a second Pd(0)-catalyzed reaction with allenic zinc chlorides.