3-Acetyl-2-ethyl-2-phenylbenzothiazoline (1) reacts at room temperature with SO2Cl2 to give, in 67% yield, the dye (2), by way of the 1,4-benzothiazine (3) arising by a new ring expansion reaction.
Unusual reaction of a substituted benzothiazoline with sulphuryl chloride: Formation of a 2,2′-(ethane-1,2-diylidene)bis-1,4-benzothiazine dye / Chioccara, F.; Mangiacapra, V.; Novellino, Ettore; Prota, G.. - In: JOURNAL OF THE CHEMICAL SOCIETY, CHEMICAL COMMUNICATIONS. - ISSN 0022-4936. - STAMPA. - (1977), pp. 863-864. [10.1039/C39770000863]
Unusual reaction of a substituted benzothiazoline with sulphuryl chloride: Formation of a 2,2′-(ethane-1,2-diylidene)bis-1,4-benzothiazine dye
NOVELLINO, ETTORE;
1977
Abstract
3-Acetyl-2-ethyl-2-phenylbenzothiazoline (1) reacts at room temperature with SO2Cl2 to give, in 67% yield, the dye (2), by way of the 1,4-benzothiazine (3) arising by a new ring expansion reaction.File in questo prodotto:
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