Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Photoirradiation of methyl 2′-methyl-2,4′-bithiazole-4-carboxylate ( ) leads predominantly to 4,4′-bithiazole with the formation of a small amount of isothiazole . The ring-selective photorearrangement is interpreted in terms of LUMO bond index. ... T. Morii, T. Hatsuura, I. Saito, T. Suzuki, J. ...