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Effect of successive increase in alcohol chains on reaction with isocyanates and isothiocyanates

The reaction of isocyanates and isothiocyanates with long-chain alcohols, e.g. n-hexanol, n-heptanol and n-octanol, exclusively gave N-aryl-O-alkyl carbamates, while N-aryl-O-alkyl carbamates were formed along with symmetrical 1,3-disubstituted ureas and thioureas when the same reactions were carrie...

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Published in:	Natural product research 2010-01, Vol.24 (1), p.18-23
Main Authors:	Perveen, Shahnaz, Yasmin, Arfa, Khan, Khalid Mohammed
Format:	Article
Language:	English
Subjects:	alcohols Carbamates - chemical synthesis Chromatography, Thin Layer Fatty Alcohols - chemistry Indicators and Reagents isocyanates Isocyanates - chemistry isothiocyanates Isothiocyanates - chemistry N-aryl-O-alkyl carbamates Solvents symmetrical ureas Temperature Thiourea - chemistry Urea - chemistry
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description	The reaction of isocyanates and isothiocyanates with long-chain alcohols, e.g. n-hexanol, n-heptanol and n-octanol, exclusively gave N-aryl-O-alkyl carbamates, while N-aryl-O-alkyl carbamates were formed along with symmetrical 1,3-disubstituted ureas and thioureas when the same reactions were carried out with small-chain alcohols at room temperature without using any solvent.
doi_str_mv	10.1080/14786410802270738
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subjects	alcohols Carbamates - chemical synthesis Chromatography, Thin Layer Fatty Alcohols - chemistry Indicators and Reagents isocyanates Isocyanates - chemistry isothiocyanates Isothiocyanates - chemistry N-aryl-O-alkyl carbamates Solvents symmetrical ureas Temperature Thiourea - chemistry Urea - chemistry
title	Effect of successive increase in alcohol chains on reaction with isocyanates and isothiocyanates
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