ChemInform Abstract: ON THE CONFORMATION AND DIMERIZATION OF A 2-MERCAPTO-5-METHYLENEPIPERAZINE-3,6-DIONE

Autor:	J. H. Noordik, Harry C. J. Ottenheijm, Koos D. M. Herscheid, Marianne W. Tijhuis
Rok vydání:	1978
Předmět:	Indole test Crystallography Chemistry Cyclohexane conformation Molecule Chelation General Medicine Crystal structure Ring (chemistry) Piperazinedione Monoclinic crystal system
Zdroj:	Chemischer Informationsdienst. 9
ISSN:	0009-2975
DOI:	10.1002/chin.197829107
Popis:	An X-ray crystal structure analysis of 9,9a-dihydro-l,9,9-trimethyl-2-methylene-3,10-diketo-9a-mercapto-piperazino[1,2-a]indole (1) shows a boat conformation for the piperazinedione ring in this compound. This observation supports the previously suggested Zn++ chelate 3 as an intermediate in the conversion of 1 into 2. Crystals of 1 are monoclinic, a = 12.751 (7)a, b = 7.439 (2) A, c = 15.324 (15) A,β = 98.73(6)°; space group: P21/n,Z = 4. In solution at room temperature 1 dimerizes to 4 with loss of one molecule of H2S.
Databáze:	OpenAIRE
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