Abstract: | 4‐Selenophosphoryl‐1,2‐disubstituted imidazoles have been obtained by thermal decomposition of methyl 5‐(diamidoselenophosphoryl)imidazolium chlorides. The position of selenophosphoryl group in the imidazole ring was proved by 1H, 13C NMR spectroscopy, and X‐ray analysis. Previously unknown diamido‐ and dichloro(imidazol‐4‐yl)‐ phosphonites were synthesized, and differences in their reactivity compared to analogous 5‐phosphorylated imidazoles are shown. © 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:103–118, 2010; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/hc.20584 |