Question
How will you obtain valine using Gabriel phthalimide synthesis? Explain.
Answer :
Word Count : 116
Prepare potassium phthalimide (phthalimide + KOH). Alkylate it with ethyl α-bromoisovalerate (ethyl 2-bromo-3-methylbutanoate) under SN2 conditions (DMF or acetone, heat, K2CO3 or KOH) to give N-(CH(R)-COOEt)phthalimide where R = _________ _________ ____ ______ ____ __________ ________ _____ _____ ____.
________ ____ ____ _____ _______ ____ _________ __________.
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__________ ____ ___ __________.
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Prepare potassium phthalimide (phthalimide + KOH). Alkylate it with ethyl α-bromoisovalerate (ethyl 2-bromo-3-methylbutanoate) under SN2 conditions (DMF or acetone, heat, K2CO3 or KOH) to give N-(CH(R)-COOEt)phthalimide where R = _________ _________ ____ ______ ____ __________ ________ _____ _____ ____.
________ ____ ____ _____ _______ ____ _________ __________.
________ ____ ___ ________ _____ _______ ________ ________ ______.
__________ _________ _______ ____ _________ __________ __________ _________ ___.
________ _________ ____ ____ _______ ___.
______ ________ _______ _______ _________ ____ ____ ______ _________ __________ ______ ______.
____ _______ _____ _____ ____ _______ __________.
__________ ___ __________ _________ ____.
_________ __________ __________ __________ ______ ________ _________ _____ __________ ______ ______ ________.
__________ ________ ______ ________ __________.
__________ ____ ___ __________.
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