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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 6780810 B1

PDFFull Text
Expired
Date of Patent:
Aug. 24, 2004

Filed:

Mar. 13, 2002

Multifunctional catalyst useful in the synthesis of chiral vicinal diols and process for the preparation thereof, and process for the preparation of chiral vicinal diols using said multifunctional catalysts

Applicant:
Inventors:

Boyapati Manoranjan Choudary, Andhra Pradesh, IN;

Naidu Sreenivasa Chowdari, Andhra Pradesh, IN;

Sateesh Madhi, Andhra Pradesh, IN;

Mannepalli Lakshmi Kantam, Andhra Pradesh, IN;

Assignee:

Council of Scientific and Industrial Research, New Delhi, IN;

Attorney:

Nixon & Vanderhye, P.C.

Primary Examiner:

Mark L Bell

Assistant Examiner:

Jennine M Brown

Int. Cl.
CPC ...
B01J 3/100 ;
U.S. Cl.
CPC ...
B01J 3/100 ;
Abstract

The present invention relates to a multifunctional reusable catalyst and to a process for the preparation thereof on a single matrix of the support to perform multicomponent reaction in a single pot. The multifunctional catalysts of the invention are useful for the synthesis of chiral vicinal diols by tandem and/or simultaneous reactions involving Heck coupling, N-oxidation and AD reaction of olefins in presence of cinchona alkaloid compounds both as an native one and immobilized one in the said matrix support. This invention also relates to a process for preparing vicinal diols by asymmetric dihydroxylation of olefins in presence of cinchona alkaloid compounds employing reusable multifunctional catalysts as heterogeneous catalysts in place of soluble osmium catalysts.

Find Patent Forward Citations

Choudary, Boyapati. (2004). Multifunctional catalyst useful in the synthesis of chiral vicinal diols and process for the preparation thereof, and process for the preparation of chiral vicinal diols using said multifunctional catalysts (U.S. Patent No. 6780810). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6780810

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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