Abstract:Three-component condensation of aldehydes and dimethyl phosphite with α-amino oximes derived from (À)-α-pinene and (+)-3-carene (Kabachnik-Fields reaction) resulted in amino phosphonates as pairs of diastereomers. Diastereomeric ratio depends on the catalyst used (SnCl 2 × 2H 2 O, SiO 2 , Al 2 O 3-H +) and the heating type (conventional or microwave). The best results were achieved by MW irradiation with simultaneous cooling. Stereochemical assignment of the key derivatives was made by X-ray diffractometry. Ac… Show more
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