Tandem aza-Wittig reaction/electrocyclic ring-closure a facile entry to the synthesis of fused pyrimidines: preparation of pyrazolo[3,4-d] and 1,2,3-triazolo[4,5-d]pyrimidine derivatives

作者： Pedro Molina , Antonio Arques , Ma Victoria Vinader , Jan Becher , Klaus Brondum

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摘要: Abstract The aza-Wittig reaction of iminophosphoranes derived from 5-azido-4-formyl azoles, with isocyanates or carbon disulfide, leads to functionalized fused pyrimidines.

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参考文章(4)

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Takao Saito, Michio Nakane, Masanobu Endo, Hiromi Yamashita, Yoko Oyamada, Shinichi Motoki, CONJUGATED HETEROCUMULENES. SYNTHESIS OF C=C-CONJUGATED CARBODIIMIDES BY A WITTIG-TYPE REACTION OF IMINOPHOSPHORANES WITH ISOCYANATES AND THEIR CYCLOADDITIONS Chemistry Letters. ,vol. 15, pp. 135- 138 ,(1986) , 10.1246/CL.1986.135

P. Molina, P. M. Fresneda, F. Hurtado, An Efficient Iminophosphorane-Mediated Synthesis of Thieno[3,2-c]pyridine, Thieno[2,3-c]pyridine and Furo[3,2-c]-pyridine Derivatives Synthesis. ,vol. 1987, pp. 45- 48 ,(1987) , 10.1055/S-1987-27837

Ahmet E. Baydar, Gerhard V. Boyd, Synthesis of 2H-1,3-oxazin-2-ones Journal of the Chemical Society, Chemical Communications. pp. 718- 719 ,(1976) , 10.1039/C39760000718

Tandem aza-Wittig reaction/electrocyclic ring-closure a facile entry to the synthesis of fused pyrimidines: preparation of pyrazolo[3,4-d] and 1,2,3-triazolo[4,5-d]pyrimidine derivatives

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Tandem aza-Wittig reaction/electrocyclic ring-closure a facile entry to the synthesis of fused pyrimidines: preparation of pyrazolo[3,4-d] and 1,2,3-triazolo[4,5-d]pyrimidine derivatives

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