METHOD OF PRODUCING 2- AND 4-(1,3,5-DITHIAZINAN-5-YL)-PHENOLS Russian patent published in 2012 - IPC C07D285/15 

Abstract RU 2443693 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing 2- and 4-(1,3,5-dithiazinan-5-yl)-phenols of general formula (1), which involves reaction of o- or n-aminophenol with N-methyl-1,3,5-dithiazinane in the presence of a samarium nitrate crystalline hydrate catalyst [Sm(NO3)2*6H2O], taken in molar ratio o-, or n-aminophenol: N-methyl-1,3,5-dithiazinane: Sm(NO3)2*6H2O = 10:(10-12):(0.3-0.7), in an atmosphere of argon in a medium of EtOH-CHCl3 as a solvent at temperature 50-70°C and atmospheric pressure for 2.5-3.5 hours.

EFFECT: method which enables to obtain a compound with high selectivity and low toxicity of the process.

1 cl, 1 tbl, 1 ex

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RU 2 443 693 C1

Authors

Dzhemilev Usein Memetovich

Rakhimova Elena Borisovna

Vasil'Eva Inna Vladimirovna

Akhmetova Vnira Rakhimovna

Ibragimov Askhat Gabdrakhmanovich

Dates

2012-02-27Published

2010-06-29Filed