... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 24, Issue 36, 1983, Pages 3917–3918. Cover image Cover image. Stereochemical control on the photochemistry of α-methoxy-β, γ-cyclopropyl cyclic ketones : reactions of epimeric 3-methoxy-4-caranones ☆. ... 14 June 1983, Available online 2 April 2001. Abstract. The two distinct photoreactions exhibited by epimeric ketones have been correlated with their stereochemistry ...