Arynic condensation of ketone enolates. 17. New general access to benzocyclobutene derivatives

B Gregoire, MC Carre, P Caubere

Index: Gregoire, Brigitte; Carre, Marie-Christiane; Caubere, Paul Journal of Organic Chemistry, 1986 , vol. 51, # 9 p. 1419 - 1427

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Citation Number: 47

Abstract

Arynic condensation of 1, 2-diketone monoketal enolates appeared to be a very simple way to synthesize benzocyclobutene derivatives. X-ray diffraction and'H NMR spectra allowed us to determine the structure of the new compounds and to propose a mechanism concerning these condensations. Finally, during this work we devised a new and easily performed two- step synthesis of 1, 2-diketones.

~81%

~43%

~45%

~45%

~71%

~81%

~69%

~77%

~53%

~53%

~81%

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