M 2743 (OTTO) 1-Methyl-2-propenylmagnesium chloride solution, 0.5 M in THF CAS-21969-32-4, can be used for the preparation of corresponding homoallylic alcohols by reacting with various aldehydes.It can also be utilized in the synthesis of 3,4-dihydro-4-(1-methyl-2-propen-1-yl)-2(1H)-pyrimidinethione derivatives by treating with 2-mercaptopyrimidine.