Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. SDS of cas: 4721-98-6. Introducing a new discovery about 4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline
The first total synthesis of alangicine (3), an Alangium lamarckii alkaloid, has been achieved in the form of a racemic modification by means of an initial alkaline hydrolysis of the (+/-)-tricyclic ester 6 and succeeding steps proceeding through the intermediates (+/-)-7, (+/-)-10, and (+/-)-9.A parallel synthetic route starting with the (-)-tricyclic ester 6, derived from (+)-cincholoipon ethyl ester (8), produced the chiral target molecule (+)-3 via the intermediates (-)-7, (-)-10, and 9.The identity of the synthetic (+)-3 with alangicine unequivocally established the structure and absolute stereochemistry of this alkaloid.The (13)C nuclear magnetic resonance spectra of (+/-)-alangicine (3) and the ipecac and Alangium alkaloid psychotrine (18) confirmed their endocyclic double bond structures in the dihydroisoquinoline moiety.Catalytic reductions of 11, (+/-)-12, and 15 using hydrogen and Pd-C were investigated, and the results have shown that hydrogenolysis of the benzyloxy group proceeds much faster than saturation of the endocyclic C=N bond.Keywords – alangicine; psychotrine; structure; absolute configuration; stereoselective synthesis; (13)C NMR; CD; benzyl ether; hydrogenolysis
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.SDS of cas: 4721-98-6, you can also check out more blogs about4721-98-6
Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem