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.
Thiol addition to dopaquinone. Thiols such as cysteine add on to dopaquinone not by conventional Michael-1,4-addition reaction. They react by an unconventional 1,6-addition, producing 5-S-cysteinyl dopa as the major product and 2-S-cysteinyldopa as the minor product. In addition 2,5-dicysteinyldopa is also formed to a certain extent. RSH—Cysteine.
