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.
a Reaction conditions: a) R-B(OH)2, Na2CO3, Pd(OAc)2, TPPTS, H2O/MeCN, 80–100 °C, 1 h. b) 1: methylene bis(phosphonic dichloride), PO(OMe)3, 0 °C, 3 h; 2: H2O, 22 °C, 1 h.
