N-Acylethylenimines

A number of N-alkyl- and N-acylethylenimines with alkyl chains as long as C20 have been shown to be carcinogenic in rats and mice. Polyfunctional ethylenimines are more carcinogenic than monofunctional ethylenimines. The critical structural features that can affect the carcinogenicity of epoxides and aziridines are summarized in Table 14.8. 

The ability of poly(N-acylethylenimine) (PNAI) to be complexed from its solutions containing suspended cage and columnar structure y-CDs was investigated [41]. PNAIs with two different MWs were synthesized and two different PNAI solvents (acetone and chloroform) were employed. Complexation of the PNAIs from solutions containing suspended y-CDs was directly monitored by lH NMR, as shown in Fig. 3. The time-dependent intensities of PNAI and water resonances were observed and permitted an evaluation of the kinetics of the PNAI inclusion. 

N-acylethylenimines 20, 38 2-aminoalcohols 17, 537 2-aininosulfuric acid monoesters 17, 537 ethylene derivatives 16, 550... 

N-acylethylenimines 14, 641 ethylenimines 14, 641 Acylfhiodicarboxylic acid chloride esters... 

Without additional reagents 192-Dichlorides from azines via azodichlorides s. 74, 583 2-Acylaminohalides from N-acylethylenimines... 

Ring-opening polymerization of a family of 2-oxazoline monomers produces poly(N-acylethylenimine)s 2 [1-5] which are re-... 

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