Transdithioacetalization of acetals, ketals, oximes, enamines and tosylhydrazones catalysed by natural kaolinitic clay
作者:G. K. Jnaneshwara、N. B. Barhate、A. Sudalai、V. H. Deshpande、R. D. Wakharkar、A. S. Gajare、M. S. Shingare、R. Sukumar
DOI:10.1039/a706475f
日期:——
Natural kaolinitic clay efficiently catalyses the transdithioacetalization of acetals, ketals, oximes, enamines and tosylhydrazones with ethane-1,2-dithiol and propane-1,3-dithiol to produce the corresponding dithiolanes in high yields.
Selective Transdithioacetalization of Acetals, Ketals, Oxathioacetals and Oxathioketals Catalyzed by Envirocat EPZ10R
作者:A. S. Gajare、M. S. Shingare、B. P. Bandgar
DOI:10.1039/a800864g
日期:——
Envirocat EPZ10R has been found to be a remarkable reusable heterogeneous catalyst for selective transdithioacetalization of acetals, ketals, oxathioacetals and oxathioketals with HSCH2CH2SH and HSCH2CH2CH2SH.
The present application relates to the preparation of cyclohexyl-alkyl carbinols, including 1-(cyclohex-3-en-1-yl)-2-methylpropan-1-ol, which possesses a minty aroma that can be described as fresh, invigorating, and menthol-like, and also possesses cooling properties. The use of cyclohexyl-alkyl carbinols as readily accessible and cost effective fragrance, flavor, and cooling ingredients, and potential applications thereof is also described.