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Sourav posted an Question
September 20, 2020 • 22:33 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Im not able to do 2nd step

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    Dinesh khalmaniya 1 best-answer

    BMS has been employed for the reduction of many functional groups. Reductions of aldehydes, ketones, epoxides, esters, and carboxylic acids give the corresponding alcohols.

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    BMS = Borane dimethylsulfide 

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    first step is cannizaro reaction

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    in second step BMS reduced -COOH to give -OH

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    degree of unsaturation 3 hoga?

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    A ka pucha se formula se nikal kr dekho

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    A ka 4 ayega or B ka 3

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    vese to jb A ka degree of unsaturation nikalna tha to 2nd step kyo di. may be degree of unsaturation is asked for B.

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    ans is 5

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    wait I'll check it and will reply you soon

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    3 double bond + 1 ring + 1 carbonyl =5

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    but 2nd step ka kya mtlb he is question me

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    pata nhi sir

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    yes, you are correct 👍👍

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    you can calculate using formula also

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