ISSN:
0941-1216
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Pyridiniumtrioxocyclobutylides 1 bearing electrondonating substituents undergo ring opening reactions at the four-membered ring in alkaline media. The structure of one of the resulting bisacyl ylides 3 is confirmed by X-ray analysis. In acidic media 3 are easily hydrolysed forming quaternary pyridinium salts of pyruvic acid 6; the existence of a stable gem-diol form 5 in the crystalline state is also proved by X-ray analysis. Triphenylphosphoniumtrioxocyclobutylide (8) gives the bisacyl ylide 9, which is hydrolysed to (triphenylphosphor-anylidene)pyruvic acid (10).
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.199633801141
