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��ѧ��ҵ�빤�� 2003, Vol. 20 Issue (6) :467-469    DOI:
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Synthesis of Methyl 4-Bromo-2-Butynoate
SONG Zhi-quan,SONG Jian(College of Pharmaceuticals and Biotechnology,Tianjin University,Tianjin 300072,China)
(College of Pharmaceuticals and Biotechnology,Tianjin University,Tianjin 300072,China

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Abstract�� Propargyl alcohol was protected by dihydrophran with the catalysis of PPTS,and then reacted with Ethyl Mag bromide to prepare its corresponding Grignard reagent.Methyl 4-hydroxy-2-butynoate THP ether was obtained after reacting with methylchloroformate.Deprotection proceeded with the catalysis of PPTS,followed by mesylization and bromide displacement with sodium bromide to give methyl 4-bromo-2-butynoate.The overall yield was 53%.
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Received 2003-11-15; published 2003-11-15
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����Ȫ,�ν�.4-��-2-��Ȳ������ĺϳ�[J].  ��ѧ��ҵ�빤��, 2003,20(6): 467-469
SONG Zhi-quan,SONG Jian.Synthesis of Methyl 4-Bromo-2-Butynoate[J].  Chemcial Industry and Engineering, 2003,20(6): 467-469
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