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. 18, 1985
Filed:
Jun. 24, 1982
Applicant:
Inventors:
Lutz-Friedjan Tietze, Goettingen, DE;
Roland Fischer, Noertenhardenberg, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536 185 ; 536 186 ; 536121 ; 536124 ; 568591 ; 568592 ; 568603 ;
Abstract
The invention relates to a process for the synthesis of 1,1'-diacetals, which method is also suitable for the stereoselective synthesis of glycosides with the 1,1'-diacetal structure. The process involves reacting a silyl compound of formula (II) with an acetal of formula (III) in the presence of a catalyst of formula (IV) or (V) in a suitable solvent.