302841-08-3Relevant articles and documents
Heteroorganic betaines 1. Synthesis of betaines containing the +P-C-Si-S- and +P-C-C-S- fragments and their characterization by multinuclear NMR spectroscopy
Borisova, I. V.,Zemlyanskii, N. N.,Shestakova, A. K.,Ustynyuk, Yu. A.,Chernyshev, E. A.
, p. 920 - 928 (2000)
A method for the synthesis of a new class of betaines, viz., R13P+CR2R3SiR4S-, was developed. The experimental evidence for the intermediate formation of betaines R13P+-CR2R3-CR4R5-S- in the Wittig reaction for a series of thiocarbonyl compounds was obtained. A comparative analysis of the NMR spectra of betaines containing the +P-C-Si-S- and +P-C-C-S- fragments was performed.
