Le O, O-diéthyltriméthylsilylchlorométhylphosphonate α-lithié (C 2 H 5 O) 2 P (O) C (Cl) Si (CH 3) 3 Li: I. Préparations et propriétés

MP Teulade, P Savignac

Index: Teulade, Marie-Paule; Savignac, Philippe Journal of Organometallic Chemistry, 1988 , vol. 338, p. 295 - 304

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Citation Number: 32

Abstract

Abstract Silylation of either chloromethyl-or trichloromethylphosphonate in the presence of excess n-BuLi leads to the quantitative generation of lithiated trimethylsilyl- chloromethylphosphonates. This stable type of anion can be protonated, deuterated or alkylated. Compounds thus obtained can be desilylated in basic medium, or used for the preparation of α-bromo-and α-iodo-phosphonates after halogen-metal exchange. ...