Scheme 55. Enantioselective Direct Vinylogous Addition of γ-Substituted β,γ-Unsaturated Butenolides to Allenoates.
2,6-DTBP = 2,6-di-tert-butylphenol.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.