Reactions of p-Hydroxyphenylphosphine and Functionally Substituted Bis(hydroxymethyl)phosphines with Heterocumulenes
摘要:
Reactions of p-hydroxyphenylphosphine, bis(hydroxymethyl)(p-hydroxyphenyl)phosphine, and bis(hydroxymethyl)(5-allyl-2-ethoxybenzyl)phosphine with nitrogen-containing heterocumulenes were studied. The competitive reactivity of the phenol, phosphine, and hydroxymethyl groups in these reactions was examined.
PROCESSES FOR THE PREPARATION OF CALIXARENE DERIVATIVES
申请人:Raston Colin L.
公开号:US20100185022A1
公开(公告)日:2010-07-22
A method for the preparation of calix[n]arene derivatives, in particular phosphonated calix[n]arenes. The present invention also relates to nano-structures of phosphonated calix[n]arenes.
Organophosphorus compounds containing hydrolytically and metabolically stable C(sp3)– and C(sp2)–P bonds are widely used as reagents, ligands, pesticides, herbicides, flame retardants, surface modifiers, and antiviral and anticancer drugs. These applications rely on efficient C(sp3)– and C(sp2)–P bond-forming reactions. However, currently available C(sp2)–P cross-coupling protocols require high catalyst loadings