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:
Jun. 03, 1986
Filed:
Sep. 01, 1982
Richard A Gencarelli, Waterbury, CT (US);
Edward L Wheeler, Watertown, CT (US);
Uniroyal Chemical Company, Inc., Middlebury, CT (US);
Abstract
A process is provided for making benzimidazoles having the formula ##STR1## wherein Y is oxygen, sulfur or --NH; R.sup.1 is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, C.sub.7 -C.sub.9 aralkyl or C.sub.7 -C.sub.9 alkaryl; R.sup.2 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; and n is 1 or 2; comprising reacting a compound having the formula ZYCN, wherein Z is an alkali metal or ammonium moiety and Y has the meanings above; with a compound having the formula ##STR2## wherein R.sup.1, R.sup.2 and n have the meanings above, in the presence of a C.sub.4 -C.sub.10 alkanol and, except when Z is NH.sub.4, in the presence of an acid.