Structure and synthesis of Vitamines

Document from the year 2014 in the subject Chemistry - Organic Chemistry grade: A-C language: English abstract: Here we discuss the structure and synthesis of various Vitamins.Vitamin A influences growth in animals and also apparently increases resistance to disease. Night blindness is due to vitamin A deficiency in the human diet and a prolonged deficiency leads to hardening of the cornea etc. Vitamin A occurs free and as esters in fats in fish livers and in blood. It was originally isolated as viscous yellow oil but later it was obtained as a crystalline solid m.p. 63-64°C.