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:
Apr. 30, 1991
Filed:
Jan. 18, 1990
Applicant:
Inventors:
Werner Bertleff, Viernheim, DE;
Dieter Koeffer, Weinheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568451 ; 568451 ;
Abstract
2,2-Dialkylpropionaldehydes I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.4 -alkyl, are prepared by hydroformylation of 1,1-dialkylethylenes II ##STR2## with cobalt carbonyl complexes, entailing (a) carrying out the reaction in the presence of water-containing solvents in which water is soluble or at least partially soluble, with the water content of the reaction mixture being from 0.1 to 20% by weight, or