Synthesis p. 152 - 154 (1994)
Update date:2022-08-18
Topics:
El-Shafei
El-Saghier
Ahmed
Ketene S,S-acetal 2 reacts with 2-aminophenol to afford 2-(1-acetyl-2- oxopropylidene)benzoxazole (3) which was allowed to react with a variety of active methylenes having an α-cyano or α-keto group to give spiro[pyran- 4,2'-benzoxazole] derivatives 5-12. Compound 3 also reacts with bromomalononitrile to afford spiro[3,3-diacetyl-2,2-dicyanocyclopropane- 1,2'-benzoxazole] 13 through a nucleophilic addition and cyclization.
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Doi:10.1016/0040-4039(96)00503-5
(1996)Doi:10.1039/a708362i
(1998)Doi:10.1039/c2cc17708k
(2012)Doi:10.1016/j.molcata.2010.10.018
(2011)Doi:10.1039/c9cc04849a
(2019)Doi:10.1021/ic971164s
(1998)
