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:
Aug. 27, 1996
Filed:
Oct. 24, 1994
Chitoor S Subramaniam, Kendall Park, NJ (US);
Thomas V John, Yardley, PA (US);
David Colvin, North Mobile, AL (US);
George W Bitler, Mobile, AL (US);
Huls America Inc., Somerset, NJ (US);
Abstract
Ortho esters of the structure ##STR1## wherein R.sub.1 and R.sub.2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1-3 carbon atoms, are prepared by first anhydrously reacting hydrogen cyanide or a hydrogen cyanide derivative with a secondary alkanol and hydrogen chloride in the presence of an inert organic solvent. Upon the formation of the resulting imino ether hydrochloride, more secondary alkanol is added to form the ortho esters (I). 1,1-Dialkoxycycloalkanes of the structure ##STR2## wherein R.sub.1 and R.sub.2 correspond to R.sub.1 and R.sub.2 of structure (I), and n is an integer from 4 to 9, are prepared by reacting with the imino ether hydrochloride more secondary alkanol and a cycloalkanone having 5 to 10 carbon atoms.