ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Syntheses with 2-Diazo-1,3-diketones, I: 1,3-OxazinesThermolysis of 2-diazo-1,3-diketones 1 in the presence of the dienophiles RNCX or RXCN leads to 1,4-cycloaddition of the intermediate acylketenes to the CN double or triple bond with formation of 3,5,6-trisubstituted 2H-1,3-oxazine-2,4-diones 7 and 2,5,6-trisubstituted 4H-1,3-Oxazin-4-ones 8, respectively.
Notes:
Die Thermolyse von 2-Diazo-1,3-diketonen 1 in Gegenwart der Dienophile RNCX bzw. RXCN führt zu 1,4-Cycloaddition der primär gebildeten Acylketene an die CN-Doppel- bzw. Dreifachbindung, wobei 3,5,6-trisubstituierte 2H-1,3-Oxazin-2,4-dione 7 bzw. 2,5,6-trisubstituierte 4H-1,3-Oxazin-4-one 8 gebildet werden.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19761090712
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