Heterocyclization of functionalized heterocumulenes with C,N-, C,O-, and C,S-binucleophiles: VIII. Synthesis of pyrano(chromeno)[3,4-e][1,3]oxazines by condensation of 1-chloroalkyl isocyanates with 4-hydroxy-6-methylpyran-2-one and 4-hydroxycoumarin

Author： Vovk M.   Sukach V.   Dorokhov V.  

Publisher： MAIK Nauka/Interperiodica

ISSN： 1070-4280

Source： Russian Journal of Organic Chemistry, Vol.43, Iss.8, 2007-08, pp. : 1186-1189

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