Klein, Robert S.; Lim, Mu-Ill; Tam, Steve Y. K.; Fox, Jack J. published the artcile< New synthesis of 5H-pyrrolo[3,2-d]pyrimidines via pyrimido[5,4-c]pyridazines>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is pyrrolopyrimidinedione; pyrimidopyridazine ring contraction; pyrimidine phenylazo formylation cyclization; cyclization formylphenylazopyrimidine.
5H-pyrrolo[3,2-d]pyrimidines I and II (R = Me2N, H2N) were prepared from 6-methyl-5-phenylazopyrimidines by conversion to intermediate pyrimido[[[5,4-c]pyridazines, e.g. III, by treatment with formylating agents such as tert-butoxybis(dimethylamino)methane. Hydrogenolytic ring contractions then give I or II; other methods for this preparation were given.
Journal of Organic Chemistry published new progress about Cyclocondensation reaction. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics