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2. Treatment of the ketone shown below with ZnBH4 in diethyl ether provides a 94:6 mixture of B and C respectively, where as treatment with LiBH(sec-Bu); provides a 1:99 mixture of B and C. Provide the structures of B and C and explain these observations using TS models (Hint: Zn makes chelates). metal hydride B + C Ph SMe solvent ZnBH₁/ether 94 6 LiBH(sec-Bu)3/THF 1 99

2. Treatment of the ketone shown below with ZnBH4 in diethyl ether provides a 94:6 mixture of B and C respectively, where as treatment with LiBH(sec-Bu); provides a 1:99 mixture of B and C. Provide the structures of B and C and explain these observations using TS models (Hint: Zn makes chelates). metal hydride B + C Ph SMe solvent ZnBH₁/ether 94 6 LiBH(sec-Bu)3/THF 1 99

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2. Treatment of the ketone shown below with ZnBH4 in diethyl ether provides a 94:6 mixture of B and C respectively, where as treatment with LiBH(sec-Bu); provides a 1:99 mixture of B and C. Provide the structures of B and C and explain these observations using TS models (Hint: Zn makes chelates). metal hydride B + C Ph SMe solvent ZnBH₁/ether 94 6 LiBH(sec-Bu)3/THF 1 99
Transcribed Image Text:2. Treatment of the ketone shown below with ZnBH4 in diethyl ether provides a 94:6 mixture of B and C respectively, where as treatment with LiBH(sec-Bu); provides a 1:99 mixture of B and C. Provide the structures of B and C and explain these observations using TS models (Hint: Zn makes chelates). metal hydride B + C Ph SMe solvent ZnBH₁/ether 94 6 LiBH(sec-Bu)3/THF 1 99
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