Unexpected formation of diethyl 2-ethoxy-6-CF3-2H-pyran-3,5-dicarboxylate from the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt)3

Unexpected formation of diethyl 2-ethoxy-6-CF3-2H-pyran-3,5-dicarboxylate from the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt)3

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 58, Issue 8, 22 February 2017, Pages 744-747

Yulia S. Kudyakova, Denis N. Bazhin, Pavel A. Slepukhin, Yanina V. Burgart, Victor I. Saloutin, Valery N. Charushin,