Photolyses of 1,4-bis(1,1-diarylhept-2-ynyl)benzenes and 1,4-bis(1,1-diarylalkyl)benzenes
Abstract
Photolyses of 1,4-bis(1,1-diarylhept- 2-ynyl) benzenes or 1,4-bis(1,1-diarylalkyl) benzenes 2 in a tetrahydrofuran–methanol mixture gave 1-biphenyl-4-yl-1,1-diarylhept-2-ynes or 1-biphenyl-4-yl-1,1-diarylalkanes 3 as major products and biaryls 1 as minor products. The products 3 were obtained with quantum yields of 0.010–0.020, respectively.