Reaction of (NH<sub>4</sub>)<sub>2</sub>MoS<sub>4</sub> with AgI in α-MePy gives the title com-pound,an X-ray analysis of which shows that the molecule forms aon
R(+)-Citronellal was converted into a key intermediate,(unsaturated ketone 5)in three steps,which led to 6 having the frame ofarteannuic acid through intramolec
An enzyme is a kind of protein with catalytic activity and long chain,and its structure andshape are determined by the hybridized state of atomic orbital.The fr
1-substituted-5-benzoylamino-4-pyrazolecarboxamides(2)wereprepared by the reaction of 1-substituted pyrazolo[3,4-d]-oxazinone(1)with amines in benzene.The compound