Synthesis and Reactions of Branched-chain Anhydrouloses with Push Pull Functionality

Autor:	Mario Gomez Andreu, José Agustín Quincoces Suárez, Klaus Peseke, Helmut Reinke, Manfred Michalik
Rok vydání:	2000
Předmět:	chemistry.chemical_compound Sodium borohydride Methylhydrazine Hydroxylamine chemistry Pyranose Hydrazine Pyrazole Guanidine Medicinal chemistry Benzamidine
Zdroj:	Journal für praktische Chemie. 342:389-395
ISSN:	1521-3897 1436-9966
DOI:	10.1002/(sici)1521-3897(200004)342:4<389::aid-prac389>3.0.co;2-n
Popis:	The α-oxoketene dithioacetal 1 was demethylthiolated with sodium borohydride to give the branched chain anhydroulose 2 which yielded with amines the corresponding aminomethylene enuloses 3, 4 and 5. The heterocyclic anellated pyranose derivatives 6, 7 and 8 were prepared by reaction of 2 with hydrazine hydrate, methylhydrazine and hydroxylamine, respectively. By treatment of methylthiomethylene enulose 18 with guanidine, acetamidine and benzamidine the pyrimidoanellated pyranose derivatives 12—14 have been obtained.
Databáze:	OpenAIRE
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