Chemistry Letters

1, 3-dipolar cycloaddition of ethyl diazoacetate to alkynes in the pores of zeolite NaY

K Kobayashi, Y Igura, S Imachi, Y Masui, M Onaka

Index: Kobayashi, Keijiro; Igura, Yuta; Imachi, Shouhei; Masui, Yoichi; Onaka, Makoto Chemistry Letters, 2007 , vol. 36, # 1 p. 60 - 61

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Citation Number: 13

Abstract

Zeolite NaY promotes 1, 3-dipolar cycloaddition of ethyl diazoacetate to alkynes having an electron-withdrawing group to afford the corresponding functionalized pyrazoles in high yields. The activation of the dipolarophile inside the pores of NaY is proposed based on the 13 C MAS NMR analysis.