1,2-Diaza-1,3-butadienes react with 2-mercapto-2-thiazoline to give 1,4-adducts that in turn produce new 1,6-dithia-4,9-diazaspiro[4.4]non-2-ene derivatives. The same reactants treated with oxazolidine-2-thione directly afford new 1-oxa-6-thia-4,9-diazaspiro[4.4]non-7-ene derivatives.
1,2-diaza-1,3-butadienes as powerful tools in the synthesis of new 1,6-dithia-4,9-diazaspiro[4.4]non-2-enes and 1-oxa-6-thia-4,9-diazaspiro[4.4]non-7-enes / A. Arcadi, O. Attanasi, B. Guidi, E. Rossi, S. Santeusanio. - In: SYNLETT. - ISSN 0936-5214. - :10(2000), pp. 1464-1466.
1,2-diaza-1,3-butadienes as powerful tools in the synthesis of new 1,6-dithia-4,9-diazaspiro[4.4]non-2-enes and 1-oxa-6-thia-4,9-diazaspiro[4.4]non-7-enes
E. Rossi;
2000
Abstract
1,2-Diaza-1,3-butadienes react with 2-mercapto-2-thiazoline to give 1,4-adducts that in turn produce new 1,6-dithia-4,9-diazaspiro[4.4]non-2-ene derivatives. The same reactants treated with oxazolidine-2-thione directly afford new 1-oxa-6-thia-4,9-diazaspiro[4.4]non-7-ene derivatives.
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