Synthesis of new cores and their use in the preparation of polyester dendrimers
作者:Jean-d’Amour K. Twibanire、Hussein Al-Mughaid、T. Bruce Grindley
DOI:10.1016/j.tet.2010.10.018
日期:2010.12
terminal allyl groups by reduction of the product of reductive ozonolysis. Some of the terminal allyl derivatives are new and others have been prepared by new methods. The well-known O-benzylidene derivative of 2,2′-bis(hydroxymethyl)propanoic acid was shown to be the cis-stereoisomer. A new AB3-type anhydride, tris(benzyloxymethyl)acetic anhydride has been prepared. It was demonstrated that these cores
Poly(lactic acid) polymer stars built from early generation dendritic polyols
作者:Genny E. Keefe、Jean-d'Amour K. Twibanire、T. Bruce Grindley、Michael P. Shaver
DOI:10.1139/cjc-2012-0471
日期:2013.6
A family of polymerstars has been prepared from early generation dendritic cores with four, six, and eight arms. Four dendritic cores were prepared from the sequential reaction of a multifunctional alcohol with a protected anhydride, followed by deprotection to afford two or three new alcohol functionalities per reactive site. These cores were used as initiators for the tin-catalyzed ring-opening