THE SYNTHESIS FROM VITAMIN A1 OF "RETINENE1" AND OF A NEW 545 mµ CHROMOGEN YIELDING LIGHT-SENSITIVE PRODUCTS

Abstract

Ball, Goodwin, and Morton (1946) have reported that vitamin A₁ in contact with solid manganese dioxide is transformed slowly into a substance which displays spectroscopic properties of retinene₁. The latter is known to be the precursor of vitamin A₁ in the rhodopsin cycle of the retinal rods. The synthetic product is here referred to as "retinene₁."