Alkene Metathesis Approach to β-Unsubstituted Anti-Allylic Alcohols and Their Use in Ene–Yne Metathesis
摘要:
The synthesis of beta-unsubstituted, anti-allylic alcohols using a catalytic Evans aldol reaction conjoined with a relay-type ring-closing alkene metathesis is reported. The metathesis step serves to remove a beta-alkenyl group, which facilitated the aldol step. The beta-substituted enals serve as acrolein surrogates. The products were employed in ene-yne cross metathesis.