We describe a mild and efficient method to prepare 3-amino-4,5-dihydro-5-isothiazolylphosphonates from 3-amino-5-unsubstituted isothiazole dioxides. Starting from 3-amino-5-bromo-isothiazole dioxides either 3-amino-5-isothiazolylphosphonates or 5-diethoxyphosphoryl-4,5-dihydro-4-isothiazolylphosphonates were prepared. Isothiazolylphosphonates represent a new class of isothiazole dioxides. Some preliminary investigations on the reactivity with 1,3-dipoles were reported.
Isothiazoles. Part 12: Isothiazolylphosphonates, a new class of isothiazoles dioxides / F. Clerici, M.L. Gelmi, E.R.E. Pini, M. Valle. - In: TETRAHEDRON. - ISSN 0040-4020. - 57:25(2001), pp. 5455-5459.
Isothiazoles. Part 12: Isothiazolylphosphonates, a new class of isothiazoles dioxides
F. ClericiPrimo
;M.L. GelmiSecondo
;E.R.E. PiniPenultimo
;
2001
Abstract
We describe a mild and efficient method to prepare 3-amino-4,5-dihydro-5-isothiazolylphosphonates from 3-amino-5-unsubstituted isothiazole dioxides. Starting from 3-amino-5-bromo-isothiazole dioxides either 3-amino-5-isothiazolylphosphonates or 5-diethoxyphosphoryl-4,5-dihydro-4-isothiazolylphosphonates were prepared. Isothiazolylphosphonates represent a new class of isothiazole dioxides. Some preliminary investigations on the reactivity with 1,3-dipoles were reported.
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