Synthesis and characterization of highly fluorinated diamines and benzoxazines derived therefrom
A novel method for the synthesis of highly fluorinated benzoxazines in a high yield derived form a α,ω-diamine-polyfluoroalkane and α,ω-dianiline-polyfluoroalkane is described. The synthetic method increases the yield by 20% and reduces the reaction time
Velez-Herrera, Pedro,Ishida, Hatsuo
experimental part
p. 573 - 580
(2009/11/30)
Highly fluorinated diazides and process therefor
This invention relates to highly fluorinated diazides of the formula N3 CH2 (CF2)x CH2 N3 wherein x is a positive integer from 2 to 12; to the preparation of these diazides by the reaction of excess sodium azide with a ditosylate of the formula C7 H7 SO3 CH2 (CF2)x CH2 O3 SC7 H7 wherein x has the same meaning given above; and to the synthesis of highly fluorinated primary diamines of the formula H2 NCH2 (CF2)x CH2 NH2 wherein x has the same meaning given above by catalytic hydrogenation of said diazides.
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(2008/06/13)
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