The preparation of dehydroamino acid esters from reaction of β–hydroxy–α–amino esters with dichloroacetyl chloride, chloroacetyl chloride or trichloroacetyl chloride in the presence of base has been investigated.
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Part of this work has appeared as a preliminary communication: GoodallK., and ParsonsA. F., Tetrahedron Lett., 1995, 36, 3259.
