The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 1978
Filed:
Nov. 30, 1977
William H Gastrock, Highstown, NJ (US);
Goro Asato, Titusville, NJ (US);
American Cyanamid Company, Stamford, CT (US);
Abstract
There are provided substituted 1,3-dithiolane compounds and a method for preparing the same. Said 1,3-dithiolane compounds are useful intermediates in the preparation of tetrahydro-7-oxobenzo[b]thien-4-ylureas and tetrahydro-4-oxo-1-naphthylureas which are known animal growth-promotong agents, which thiolanes are represented by the formula: ##STR1## wherein R.sub.1 is a member selected from the group consisting of 2-thienyl and phenyl; R.sub.2 is a member selected from the group consisting of ##STR2## wherein X is chlorine or bromine; R.sub.3 and R.sub.4 are each members selected from the group consisting of hydrogen and methyl; and when R.sub.1 and R.sub.2 are taken together with the carbon atom to which they are attached they represent a bicyclic moiety selected from the group consisting of ##STR3## wherein the carbon atom of said bicyclic moiety marked with an asterisk is also part of the 1,3-dithiolene ring; U is a moiety selected from the group consisting of ##STR4## and when U is ##STR5## said compounds are the racemic mixtures and the optical isomers thereof.