Carbosilane Dendrimeric Carbodiimides: Site Isolation as a Lactamization Tool
作者:Alessia Amore、Rieko van Heerbeek、Niek Zeep、Jan van Esch、Joost N. H. Reek、Henk Hiemstra、Jan H. van Maarseveen
DOI:10.1021/jo052027c
日期:2006.3.1
The convergent syntheses of three generations of carbosilane dendrimeric carbodiimides are described. The wedge-type building blocks were synthesized in a divergent way, starting from allyl chloride and a repetitive sequence of hydrosilylation with HSiCl3 and a Grignardreaction with allylmagnesiumbromide. Hydrogenation of the terminal double bonds led to inert and stable wedges. The chloride substitutent