Abstract:
The polycyanamide compound of formula (I) is prepared by conducting diazotization of polycyanamide of formula(II) in sulfuric acid; coupling diazotized polycyanamide with alizarin yellow GG of formula (IIIa), sudan III of formula(IIIb), orange II of formula(IIIc), acriflavine of formula(IIId), bordeaux R of formula(IIIe), K2 of formulas(IIIf). In formula, x is 10-30.
Abstract:
본 발명은 구조식(Ⅰ)로 표시되는 5-크로로-2,4,6-트리플루오로피리미딘(5-chloro-2,4,6-trifluoropyrimidine)의 새롭고도 진보된 제조방법에 관한 것으로 이 화합물은 반응성 염료의 제조에 있어서 중요한 중간체로 사용되는 유기화합물이다.
Abstract:
Cycloquinolone derivs. of formula (I) are prepd. by (a) reacting a cpd. of formula (II) with a mixed acid (i.e. 1:10 sodium nitrite/ tetrafluoroboric acid in 1:10 HCl) for 1 hr at 0-5 deg. C to prep. diazonium salt and (b) reacting in org. solvent i.e. dimethylchloride, n-hexane, xylene and water in the presence of mineral salt (i.e. CuCl2, NaF) at 30-150 deg. C or in the absence of mineral salt at 30-200 deg. C. In the formulas, R=H, Me, Et or propyl; Z=halo or substd. amino gp.. (I) are useful as an antibacterial agent.
Abstract:
A phenyldichlorophosphine (PDP) of formula (I) is prepd. by reacting chlorobenzene of formula (II) with PCl3 in the presence of yellow (white) phosphorus for 6-8.5 hr at 300-315 deg.C. The mole ratio of (II):PCl3:yellow phosphorus is 1.0:1.2-1.5:0.7-0.9. (I) is useful as intermediates of agrichemicals, drugs and dyes.
Abstract:
Title compds. (I)[R1=H, F, Cl; R2=H, Cl; R3=H, Cl, NO2; R4=H, Cl; R5=H, F; R6=(II) , useful as a herbicide, were prepd.. Thus, a mixt. contg. 200ml anhyd. trichloro ethylene and 8.6g ethylene urea was refluxed with 20.2g triethyl amine and 24g 2,5-dichlorophenoxy acetyl chloride for 2hrs to give 23.7g en-(2,5- dichlorophenoxy) acetylethylene urea.
Abstract:
The title derivs. (I)[R1=H, lower alkyl; R2=H lower alkyl, Ph, Bz), useful for treating stomach and gastric ulcer, were prepd.. Thus, 1,3-dichloro-acetone was reacted with thiourea in EtOH to give S-(2- aminothiazol-4-ylmethyl)isourea, which was reacted with 3- chloropropionitrile in MeOH/H2O and treated with 10% NaOH soln. to give 3-(2-aminothiazol-4-ylmethylthio)propionitrile (II), Reflux of (II) with cyanoamide in MeOH gave 3-(2guanidinothiazol-4- ylmethylthio)propionitrile (III). Acid hydrolysis of (III) with anhydr. HCl gas in anhydr. MeOH/ chloroform gave methy 3-(2- guanidinothiazol-4-yl)methylthiopropionimidate (IV).