Patent ID: 7235670

Claim:
A 2-nitroaryl derivative having the formula wherein R 1-4 independenly of one another are hydrogen (H), Cl, Br, NO 2 , CF 3 , CN, NH 2 , OH, SH, OMe, SMe, acetyl, X 1 —Y—X 2 (X 1 and X 2 independently of one another are N, NH, O,S, carbonyl, thiocarbonyl, C, CH, CH 2 , CH 3 , NH 2 , NH, OH, SH, alkyl, or alkenyl, or alkynyl, or acyl, or aryl, or acylaryl, or heteroaryl, or alkoxyl having 1-18 carbons; Y=NH, O,S, NCH, NHCH, NHCH 2 , CH, CHCH, CH 2 , CH 2 CH 2 , unsubstituted or substituted at one or more positions by Cl, Br, NO 2 , CF 3 , CN, NH 2 , OH, SH, OMe, SMe, (1,2)-benzinyl, benzyl, or alkyl, or alkenyl, or alkynyl, or, acyl, or arylacyl, or aryl, or alkylary, or heteroaryl, or alkoxyalkyl, or alkoxyaryl, or phosphonyl alkyl, or phosphonyl aryl, having 1-18 carbons), phenyl, benzyl, or aryl are unsubstitute or substituted at one or more positions by Cl, Br, NO 2 , CF 3 , CN, NH 2 , OH, SH, OMe, or alkyl, or alkenyl, or alkynyl, or, acyl, or arylacyl, or aryl, or alkylaryl, or heteroaryl, or alkoxyalkyl, or alkoxyaryl, or phosphonyl alky, or phosphonyl aryl, having 1-18 carbons; Ra=H, CH 3 , Cl, Br, CN, phenyl, acetyl, or acyl, or heteroaryl, or aryl, or alkyl, or alkenyl, or alkynyl, or alkylaryl, or akoxyalkyl having 1-30 carbons; X=a Lewis base,