The syntheses of 2-hydroxybenzothiazole substituted cyclotriphosphazenes: Spectroscopic characterizations

Abstract

The nucleophilic substitution reactions of mono- and bis-spiro-2,2’-dioxybiphenyl cyclotriphosphazenes (1a and 1b) with 2-hydroxybenzothiazole (2) were performed in the presence of metallic sodium in THF. Two novel 2-oxybenzothiazole-substituted spiro-2,2′-dioxybiphenyl cyclotriphosphazene derivatives (3a and 3b) were obtained from these reactions. Both compounds (3a, 3b) have been characterized by elemental analysis as well as by ¹H, ¹³C and ³¹P NMR spectroscopy. Compounds 3a and 3b are reported for the first time in this study.

GRAPHICAL ABSTRACT

Keywords:

• 2-Hydroxybenzothiazole
• phosphazenes
• hexachlorocyclotriphosphazene
• Spiro phosphazenes

Disclosure statement

No potential conflict of interest was reported by the authors.