Short synthesis of new 13,16-diazaestrone and 13,16-diazaequilenin analogs

Autor:	J. A. Parihar, M. M. V. Ramana
Jazyk:	angličtina
Rok vydání:	2005
Předmět:	13 16-diazaestrone steroids Chemistry Stereochemistry polyphosphoric acid 13 16- diazaequilenin steroids Intramolecular cyclization General Chemistry chemoselective cyclization
Zdroj:	Journal of the Brazilian Chemical Society, Volume: 16, Issue: 4, Pages: 881-883, Published: AUG 2005 Journal of the Brazilian Chemical Society v.16 n.4 2005 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ
Popis:	Different 3-[2-(3,4-dihydro-1-naphthyl)ethyl]imidazolidine-2,4-diones and 3-[2-(1-naphthyl)ethyl]imidazolidine-2,4-diones, when heated in polyphosphoric acid at 150 °C, underwent chemoselective intramolecular cyclization to afford the 13,16-diazaestrone steroids and 13,16- diazaequilenin steroids respectively. Diferentes 3-[2-(3,4-diidro-1-naftil)etil]imidazolidina-2,4-dionas e 3-[2-(1-naftil)etil]- imidazolidina-2,4-dionas, quando aquecidas em ácido polifosfórico a 150 °C, sofrem ciclização quimioseletiva intramolecular resultado nos respectivos esteróides 13,16-diazaestrona e 13,16- diazaequilenina.
Databáze:	OpenAIRE
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