Stereoselective syntheses of di-, tri-, and tetrasubstituted enediynes from enynyl iodides via Pd-catalyzed coupling reactions
摘要:
Palladium catalyzed cross-coupling of iodoenynes derived from mono(stannyl)enynes with alkynyl zinc reagents affords isomerically pure conjugated di-, tri- and tetrasubstituted (Z)-enediynes and trisubstituted cross-conjugated enediynes in high yields.