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.:

US 4248787 B1

Date of Patent:

Feb. 03, 1981

Filed:

Dec. 08, 1978

Process for preparing substituted cyclic acetals of oxyacetaldehydes and

Applicant:

Inventors:

Mark A Sprecker, Sea Bright, NJ (US);

John J Kryschuk, Howell, NJ (US);

John B Hall, Rumson, NJ (US);

Assignee:

International Flavors & Fragrances Inc., New York, NY (US);

Attorney:

Liberman; Arthur L.

Primary Examiner:

Ethel G Love

Int. Cl.

CPC ...

C07D / ; C07D / ; C07D / ;

U.S. Cl.

CPC ...

260338 ; 2603407 ; 2603 / ;

Abstract

A process is described for the preparation of substituted oxyacetaldehydes and cyclic acetals thereof according to the reaction sequence: ##STR1## wherein R.sub.1 and R.sub.2, taken together form a lower alkylene group; wherein R.sub.3 is alkyl, alkenyl or alkadienyl and X is halogen selected from the group consisting of chlorine and bromine, the reaction (i) being carried out (1) using a 'phase transfer agent' and (2) in a two phase system.

Find Patent Forward Citations

Sprecker, Mark. (1981). Process for preparing substituted cyclic acetals of oxyacetaldehydes and (U.S. Patent No. 4248787). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4248787

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