The construction of C–C bonds with regio- and stereoselectivity is paramount in natural product synthesis and metal-catalysed asymmetric allylic alkylation reactions have played a key role, with high C3 selectivity demonstrated in butenolide synthesis. Now, a palladium-catalysed C5-selective method is reported, providing direct and highly enantioselective access to a range of diversely substituted butenolides.
- François Richard
- Sidonie Aubert
- Stellios Arseniyadis