Aa. Bogachev et al., FORMATION OF BICYCLIC ADDUCTS IN THE REACTIONS OF FLUORINATED 2,4-CYCLOHEXADIEN-1-ONES WITH 2-CARBOXYBENZENEDIAZONIUM, Russian chemical bulletin, 43(9), 1994, pp. 1546-1549
Benzyne generated during the decomposition of 2-carboxybenzenediazoniu
m interacts with oro-2,3,4,5,6-pentafluoro-2,4-cyclohexadien-1-one, 5,
6-tetrafluoro-3-methoxy-2,4-cyclohexadien-1-one, ro-3-(pentafluorophen
oxy)-2,4-cyclohexadien-1-one, and perfluoro-6-phenoxy-2,4-cyclohexadie
n-1-one to form [4+2]-cycloaddition products. The latter are easily co
nverted to 1-naphthylacetic acid derivatives by the action of O- and N
-nucleophiles.