138399-44-7Relevant articles and documents
Cs2CO3-promoted defluorination and functionalization of α-CF3 carbonyl compounds in the presence of: N -, O -, and/or S -nucleophiles
Wu, Yue,Zhang, Bingbing,Zheng, Yinying,Wang, Yuheng,Lei, Xinsheng
, p. 16019 - 16023 (2018)
A simple, efficient, and mild method for defluorination and functionalization of 3,3,3-trifluoro carbonyl compounds has been developed. In the present method, Cs2CO3 can easily convert α-trifluoromethyl esters, amides, and ketones in
Monoazo or disazo pigments based on (benoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides
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, (2008/06/13)
Water-insoluble azo colorants, their preparation and use The invention relates to monoazo and disazo compounds of the formula (I) STR1 in which D is the radical of a carbocyclic or heterocyclic diazo or bisdiazo component, R1 and R2, independently of one another, are each a substituted or unsubstituted aryl or heteroaryl radical, X1 and X2, independently of one another, are each ring-forming ether oxygen or a substituted or unsubstituted imide grouping and n has the value 0 or 1, in which rings A and B, independently of one another, can each be additionally substituted and/or carry substituted or unsubstituted fused rings. These new compounds of the formula (I) are obtained by coupling diazotized amines or diamines of the type D--NH2 or H2 N--D--NH2 with (benzoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides. Depending on the presence and length of alkyl chains, the compounds of the formula (I) are suitable for use as pigments, disperse dyes or oil-soluble dyes.
