Chemistry is traditionally divided into organic and inorganic chemistry. SDS of cas: 4721-98-6, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 4721-98-6
ANGULARLY ALKYLATED 8-AZA-D-HOMOGONANES
We have established that cyclic azomethines (1-alkyl-substituted 3,4-dihydroisoquinolines) enter into the annelation reaction with cyclic beta-triketones (2-acyl-1,3-cyclohexanediones) with formation of C-9 angularly alkylated 8-aza-D-homogonanes.We have shown that the reaction of asymmetric beta-triketones (2-acetyl-5,5-dimethyl-4-methoxycarbonyl-1,3-cyclohexanedione) is accomplished regioselectively, leading to the 17-methoxycarbonylated 8-aza-D-homogonane derivative, existing in solutions in the form of a mixture of stereoisomers with respect to C-17 (due to keto-enol ta utomerism) and in crystals in the form of a single stereoisomer.The structure of the 8-azo-D-homogonanes has been proven by UV, IR, and PMR spectra.
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Reference£º
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem