The synthesis of azulene derivatives from troponoids

T Nozoe, S Seto, S Matsumura, Y Murase

Index: Nozoe,T. et al. Bulletin of the Chemical Society of Japan, 1962 , vol. 35, # 7 p. 1179 - 1188

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Citation Number: 54

Abstract

IV The use of tertiary amine in place of alkoxide as the condensation agent resulted in the formation of III in a 35% yield and of a small amount of orange crystals (V)(mp above 300 C), sparingly soluble in organic solvents. The reaction of 2-methoxytropone (Ic) with two molar equivalents of ethyl cyanoacetate, in the presence of two molar equivalents of sodium ethoxide, afforded III in a 5% yield and a 7% yield of orange crystals (VI), CuHi2-02N2, of ...