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:
Jan. 17, 1989
Filed:
May. 11, 1987
Applicant:
Inventor:
Duane C Hargis, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
544277 ; 544330 ; 544331 ; 544336 ; 544405 ; 546105 ; 546184 ; 546192 ; 546193 ; 546203 ; 546240 ; 546245 ; 546251 ; 546260 ; 546281 ; 546314 ; 546344 ; 546346 ; 548400 ; 548529 ; 548540 ; 548560 ; 548562 ; 548564 ; 548574 ; 548577 ; 548578 ; 548579 ;
Abstract
Compounds containing at least one N,N-dialkylatable amino or amido group (e.g., aniline, dodecylamine, acetamide) are converted in a highly efficient manner into gem cyclodialkylated compounds by reaction with an unstrained cyclic ether (e.g., tetrahydrofuran) or a polyol (e.g., 1,4-butane diol) cyclizable to an unstrained ether using titanium dioxide catalysts that have prior to use: