Synthesis of seven-membered ring analogues of ketamine was studied with two strategies. In the first approach a sequence of five reactions was used which previously applied for ketamine synthesis. This strategy led to formation of 1-[(2-chlorophenyl)(methylimino)methyl]cyclohexan-1-ol as a precursor for the target molecule. In the second approach, we have designed and attempted to synthesize a new analogue of ketamine applying challenging reactions such as ring expansion and selective bromination. The result of this route is synthesis of some interesting compounds such as 6-phenyl-1-oxa-4-thiaspiro[4.6]undecane, 3-bromo-6-phenyl-1-oxa-4-thiaspiro[4.6]undecane and 2,7-dibromo-2-phenylcycloheptanone.
Research on Chemical Intermediates – Springer Journals
Published: Sep 11, 2014
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