Diastereoselective Diels-Alder Reaction of 2-(α, β-Unsaturated) acyl-3-phenyl-l-menthopyrazoles

C Kashima, K Fukusaka, K Takahashi…

Index: Kashima, Choji; Kita, Isanobu; Takahashi, Katsumi; Hosomi, Akira Journal of Heterocyclic Chemistry, 1995 , vol. 32, # 1 p. 25 - 28

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Citation Number: 21

Abstract

The reaction of 2-(α, β-unsaturated) acyl-3-phenyl-l-menthopyrazoles (9) with dienes gave Diels-Alder adducts in good yield. The addition of MgBr2⊙ OEt2 or ZnCl2 accelerated these reactions through the formation of chelating bonds such as N⊙⊙⊙ Mg⊙⊙⊙ OC or

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