Synthesis and Structure of Zinc Complexes of 2-Amino-1-azetines
The 2-dimethylamino-3,3-dimethyl-1-azetines 7a and 7b have been synthesized in analogy to the procedure reported by Ghosez et al.  (Scheme 1). The crystal structure of 1-benzhydryl-azetidindimethyliminiumchloride 5a, a precursor of azetine 7a, has been established by X-ray diffraction analysis. Treatment of azetines 7a and 7b with ZnBr, in CH2Cl2/MeCN yielded tetrahedral bis(azetine)dibromozinc complexes 8a and 8b, respectively (Scheme 2). The molecular structure of 8a has been determined by X-ray diffraction analysis too.