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

Authors
Borisova, IV Zemlyanskii, NN Shestakova, AK Ustynyuk, YA Chernyshev, EA
Citation
Iv. Borisova et al., 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, RUSS CHEM B, 49(5), 2000, pp. 920-928
Citations number
65
Categorie Soggetti
Chemistry
Journal title
RUSSIAN CHEMICAL BULLETIN
ISSN journal
10665285 → ACNP
Volume
49
Issue
5
Year of publication
2000
Pages
920 - 928
Database
ISI
SICI code
1066-5285(200005)49:5<920:HB1SOB>2.0.ZU;2-3
Abstract
A method for the synthesis of a new class of betaines, viz., (R3P+CRRSiRRS- )-P-1-R-2-Si-3-R-4-S-5, was developed. The experimental evidence for the in termediate formation of betaines (R3P+)-P-1-(CRR3)-R-2-(CRR5)-R-4-S- in the Wittig reaction for a series of thiocarbonyl compounds was obtained. A com parative analysis of the NMR spectra of betaines containing the P+-C-Si-S- and P+-C-C-S- fragments was performed.