Tetrahedron letters

Synthesis of naphtho [b] cyclobutenes from 1, 2-bis (3-propynol) benzenes

S Kitagaki, Y Okumura, C Mukai

Index: Kitagaki, Shinji; Okumura, Yuki; Mukai, Chisato Tetrahedron Letters, 2006 , vol. 47, # 11 p. 1849 - 1852

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Citation Number: 8

Abstract

We have demonstrated that the reaction of benzene-bridged bis (propargyl alcohol) s with chlorodialkylphosphines exclusively afforded 3, 8-bis (dialkylphosphinyl) naphtho [b] cyclobutenes via the [2+ 2] cycloaddition of 1, 2-bis (α-phosphinylallenyl) benzenes. Dephosphinylation of the product has also been achieved.