Patent · US Expired

Process for the preparation of N-allyl-O-alkyl thionocarbamates

US4456560A · kind A · utility

1Cited by
1References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 23, 1982
Grant dateJun 26, 1984
Priority date
Expiry dateAug 23, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C333/02
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

An improvement in the process for the preparation of N-allyl-O-alkyl thionocarbamates by the reaction of an allyl isothiocyanate with an alcohol is disclosed which comprises the use of a catalyst of the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are individually selected from alkyl or aryl or a mixture thereof, M represents a metal from Group III B, IV B, or V B of the Periodic Table of the Elements, and n is the integer 0 or 1; provided that the sum of n.sub.1, n.sub.2, n.sub.3, n.sub.4, and n.sub.5 equals the valance of said metal M.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.