ISSN:
0021-8383
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Sensitized Photooxidation of Butadiene-(1,3)-sultames-(1,4)The sensitized photooxidation of the butadiene-sultames 1a-d gives 2-aryl-3,5-dimethyl-5-hydroxy-1,1,6-trioxo-5,6-dihydro-2H-1,2-thiazines 2a-d in yields of 60%. The compounds 2a-d are instable against bases and acids. With triethylamine the N-aryl-5-hydroxypyrrolin-2-ones 5a-d are formed by SO2-extrusion. With alkali 2b reacts to 5b and cis-β-acetyl-methacrylic acid 4. 1H- and 13C-n.m.r. spectroscopic data of 2 and 5 are given.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/prac.19793210609
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