Solvolysis of 3,4-Dihalogeno-3,4-dihydro- 2H-naphtho[1,2-b]pyrans and 1,2-Dihalogeno-2,3-dihydro-1H-naphtho[2,1-b]pyrans

Abstract

Rates and activation parameters are obtained for the hydrolysis of trans-3ax,4ax-dihalogeno-3,4-dihydro-2H-naphtho[1;2-b]pyrans and trans-1ax,2ax-dihalogeno-2,3-dihydro-1H-naphtho[2,1-b]pyrans¹ and the methanolysis of the latter compounds in acetone–water and acetone–methanol, respectively.