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(R)-2-Bromooctane reacts with hydrogen sulphide (HS^(-)) ion and gives (S)-2-octanethiol with inversion of configuration at the stereocentre. Can we plan to get (R)-2-octanethiol from (R)-2-bromooctane? |
Answer» Solution :(R)-2-octanethiol can be OBTAINED from (R)-2-bromooctane by DOUBLE inversion to GET net retention of configuration. For EXAMPLE, an `S_(N)2` reaction with `I^(-)` ion would give (S)-2-io- dooctane. Then, it is reacted with HS-to give (R)-2-octanethiol. 
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