Phosphate-, Phosphite-, Ylide-, and Phosphonate-Terminated Dendrimers
摘要:
Many types of tri- and tetracoordinated phosphorus derivatives have been grafted on the surface of dendrimers, starting from aldehyde terminal functions. Depending on the solubility of the resulting phosphorylated dendrimers, these experiments have been carried out on generation 1 (six end groups) for phosphate- (4-[G(1)]), phosphinite- (6-[G(1)]), and ylide-teminated (11-[G(1)]) dendrimers and up to generation 5 (96 end groups) for aminophosphate- (8-[G(1)], 8-[G(5)]), aminiphosphite (10-[G(1)], 10-[G(5)]), and functionalized phosphonate-terminated (14-[G(1)]-14-[G(5)], 15-[G(1)], 15-[G(5)], 17-[G(1)], 19-[G(1)], 19-[G(5)]) dendrimers. Most of the phosphonate-terminated dendrimers present an unexpected long-range phosphorus-phosphorus coupling constant through seven bonds (3.8 < (7)Jpp < 4.5 Hz).
Phosphate-, Phosphite-, Ylide-, and Phosphonate-Terminated Dendrimers
作者:Delphine Prévôté、Anne-Marie Caminade、Jean Pierre Majoral
DOI:10.1021/jo9701750
日期:1997.7.1
Many types of tri- and tetracoordinated phosphorus derivatives have been grafted on the surface of dendrimers, starting from aldehyde terminal functions. Depending on the solubility of the resulting phosphorylated dendrimers, these experiments have been carried out on generation 1 (six end groups) for phosphate- (4-[G(1)]), phosphinite- (6-[G(1)]), and ylide-teminated (11-[G(1)]) dendrimers and up to generation 5 (96 end groups) for aminophosphate- (8-[G(1)], 8-[G(5)]), aminiphosphite (10-[G(1)], 10-[G(5)]), and functionalized phosphonate-terminated (14-[G(1)]-14-[G(5)], 15-[G(1)], 15-[G(5)], 17-[G(1)], 19-[G(1)], 19-[G(5)]) dendrimers. Most of the phosphonate-terminated dendrimers present an unexpected long-range phosphorus-phosphorus coupling constant through seven bonds (3.8 < (7)Jpp < 4.5 Hz).
Phosphorus-Containing Dendrimers. Easy Access to New Multi-Difunctionalized Macromolecules
作者:Nathalie Launay、Michael Slany、Anne-Marie Caminade、Jean Pierre Majoral
DOI:10.1021/jo960045b
日期:1996.1.1
Phosphorus-containing dendrimers 1-[G'(1)]-1-[G'(4)] (generation 1 to generation 4) possessing terminal aldehyde groups reacted with a variety of hydrazino compounds. Addition of hydrazine itself to 1-[G'(1)]-1-[G'(4)] afforded the corresponding dendrimers 2-[G(1)]-2-[G(4)] with hydrazono groups at the periphery. Addition of methylhydrazine to 1-[G'(1)], 1-[G'(4)] gave the dendrimers 3-[G(1)], 3-[G(4)]