New Approach to the Synthesis of Phosphorodichloridites, Phosphorochloridites, and Trialkyl Phosphites
作者:Piotr Majewski
DOI:10.1080/10426500902719222
日期:2009.4.7
Different trivalent organophosphorus esters such as phosphorodichloridites, phosphorochloridites, and mixedtrialkylphosphites have been easily synthesized in good yields using a HCl-catalyzed reaction of the corresponding chlorophosphine and alkoxytrimethylsilane by mutual exchange of the alkoxy and chlorine ligand (P III Cl/ROSiR′ 3 ; exchange reaction). Chemoselectivity of the exchange reaction
Straightforward Synthesis of Depsiphosphonopeptides via Mannich-Type Multicomponent Condensation
作者:Jiaxi Xu、Yuanhe Gao
DOI:10.1055/s-2006-926324
日期:——
A straightforward method for the synthesis of depsiphosphonopeptides via a Mannich-type multicomponent condensation of simple starting materials, such as benzyl carbamate, aldehydes, and 1-carbethoxyalkyl phosphorodichloridites, was developed. Compared to previous methods, our strategy provides a more efficient, convenient, and practical route for the preparation of depsiphosphonopeptides under mild reaction conditions with good yields. Such a strategy avoids the initial synthesis of 1-aminoalkylphosphonic acid or 1-aminoalkylphosphonous acid derivatives as starting materials.