Issue 7, 1989
From the journal:

Journal of the Chemical Society, Perkin Transactions 1

Lewis acid catalysed preparation of some carbamates and sulphonylureas. Application to the determination of enantiomeric purity of chiral alcohols

Hiroshi Irie,   Masataka Nishimura,   Morihiro Yoshida  and  Toshiro Ibuka  

Abstract

Lewis acids such as boron trifluoride–diethyl ether and aluminium chloride catalyze the reaction of alcohols and sulphonamides with isocyanates, affording carbamates and sulphonylureas, respectively, in acceptable yield. Applied to the formation of diastereoisomeric carbamates from chiral alcohols using Pirkle's reagents, [(R)- and (S)-1-(1 -naphthyl)ethyl isocyanate (NPEI)], this technique provides a convenient method for determination of enantiomeric purity.

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Article information

DOI
https://doi.org/10.1039/P19890001209
Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1989, 1209-1210

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Lewis acid catalysed preparation of some carbamates and sulphonylureas. Application to the determination of enantiomeric purity of chiral alcohols

H. Irie, M. Nishimura, M. Yoshida and T. Ibuka, J. Chem. Soc., Perkin Trans. 1, 1989, 1209 DOI: 10.1039/P19890001209

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