C–C Bond Formation by Oxidative Ring‐Opening Homocoupling of Cyclobutanols

The formation of a C(sp 3 )–C(sp 3 ) bond by oxidative ring‐opening homocoupling of cyclobutanols was explored. A broad scope of 1‐substituted cyclobutanols were transformed into C(sp 3 )–C(sp 3 ) bond‐formation products by oxidative ring opening in good to high yields under exceptionally mild conditions in an open flask in just 30 s.