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N-unsubst aziridines prodn - from n-unsubst oxaziridines and olefines
N-unsubst aziridines prodn - from n-unsubst oxaziridines and olefines
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机译：N-无取代氮丙啶产品-由N-无取代恶唑烷和烯烃
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摘要
Process for preparing N-unsubstituted aziridines of formula (I) (where R1, R2, R3 and R4 are H, alkyl, cycloalkyl, aryl, or an O- or N-contg. group and the grouping R1-C-R2 or R3-C-R4 or R1-C-C-R3 can also be part of a cycloaliphatic ring) by reacting olefines of the formula R1R2C = CR3R4 with an N-unsubstituted oxaziridine carrying on the ring carbon atom 1 or 2 alkyl groups (which can be part of a hydroaromatic ring) or an aryl residue, in an aprotic solvent at 50-150 degrees C (pref. 100-140 degrees C), and isolating (I) from the reaction product in a conventional manner. (I are useful as intermediates for a variety of substances, e.g. foam-stabilizers, pharmaceuticals etc. Single step process using readily accessible starting materials. Sterically uniform oxaziridine starting materials give sterically uniform aziridine products.
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