This invention relates to a method (I) for preparing substituted cyclic
serine compounds having the
chemical formula (I), wherein R 1 It is a C1-C8
alkyl, C1-C8 haloalkyl, C3-C6 cycloalkyl,
aryl, or surrounded by one to five Rs. 11 Substituted
aryl, or
aryl-C1-C4 alkylene, or with one to five R 11 Substituted aryl-C1-C4 alkylene groups; and each R 11 The compounds are independently C1-C4
alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, cyano, or
halogen; the invention also relates to intermediates produced by these methods. Compounds having
chemical formula (I) are useful intermediates for the production of compounds in the agricultural and pharmaceutical fields.