Abstract:
Polycyan amide cpd. of formula (I) is prepd. by diazotization of polycyan amide of polymer (II) in conc. sulfuric acid by reacting with sodium nitrite at 0 deg.C; and coupling that with ethyl red of formula (IIIa) or acid orange 8 of formula (IIIb) or acid red 88 of formula (IIIc) or K1 of formula (IIId) in the conc. sulfuric acid. In the formulas, X is integer of 10-30; n is more than 100. The obtd. cpd. (I) produces photocurrent by visible light and has photoconductivity, and is useful for a photo-cell, electrical storage polymer battery or sensor.
Abstract:
Prepn. of piperazinyl guinoline derivs. of formula (I) comprises reacting dihaloguinolines of formula (II) with trialkylsilyl piperazines of formula (III) in the presence of a tetraalkyl ammonium halide of formula (IV) in a polar solvent at 60-80 deg.C for 2-3 hrs. In the formulas, R1=C1-6 alkyl, chclopropyl or -OCH2CHMe-, with the O atom linked to the 8 position in the quioline; R2=H, Me or Et, R3-R5=C1-6 lower alkyl gps., selected from Me, Et or t-Bu; R6=Me, Et or Bu. (I) are broad spectrum fungicides.
Abstract:
R=H,Me,Et,Pr,Bt; R1=Cl, piperazinyl) are prepd. by cyclization of II by adding diazomethane in the presence of catalytic amount of metal salt (III) and nonpolar solvent (IV). The III is one of Cu,Pd,Ro,Pt,Mo, and IV is the mixt. of ether, dimethylene chloride and diisopropyl ether or ether and dimethylene chloride. Thus 10g ethyl-6-fluoro-7-chloro1,4-dihydro-4- oxoquinoline-3-carboxylate and 1.49g sodium hydride in 50ml formamide are stirred for 1 hr followed by reacting with 6.37g 1-bromo-2- chloroethane at 110≦̸C for 3 hr to give 10.5g I (R=C2H5, R1=Cl).