Reference

Pyrazoline derivatives

Pyrazoline derivatives. Hettiche, Albert; Patsch, Manfred (BASF A.-G., Ger.). Ger. Offen. DE 2550548 12 May 1977, 14 pp. (German).Several reagents such as 710-24-7 is used here. (Germany). CODEN: GWXXBX. CLASS: IC: C07D231-06. APPLICATION: DE 75-2550548 11 Nov 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 28 Pyrazolines I [R-R4 = H, Me, Cl; R5 = CH:CHCH2OH, CH2CH(OH)CH2Cl, CH2CH(OAc)CH2Cl, 2,3-epoxypropyl], prepd. by condensing x,y,4-R3,R4(H2NNH)C6H2SO2R5 with 4,x,y-ClRR1C6H2COCH2CHClR2, exhibit a blue or greenish blue fluorescence in DMF. I can be used as fluorescent whiteners or as fluorescent whitener intermediates. Thus, reaction of 4-AcNHC6H4SO2H [710-24-7] with epichlorohydrin [106-89-8] followed by treament with aq. NaOH gave 4-AcNHC6H4SO2CH:CHCH2OH [63661-92-7], which was hydrolyzed to the amine, diazotized, reduced to the hydrazine deriv. [63661-93-8], and treated with 4-ClC6H4COCH2CH2Cl [3946-29-0] to give yellow I(R-R4 = H, R5 = CH:CHCH2OH) [63661-91-6], fluorescent blue in DMF. Sixteen other I are reported. .

Potential aryl-vinyl-ketones - a new class of microbiocides with good environmental properties

Potential aryl-vinyl-ketones - a new class of microbiocides with good environmental properties. Paulus, W. (Bayer A.-G., Krefeld-Uerdingen, Ger.). Proc. Int. Biodegradation Symp., 3rd, Meeting Date 1975, 1063-73. Edited by: Sharpley, J. Miles; Kaplan, Arthur M. Appl. Sci.: Barking, Engl.Several substances like 3946-29-0 may be metioned in this study. (English) 1976. CODEN: 35UWA6. DOCUMENT TYPE: Conference CA Section: 5 (Agrochemicals) Section cross-reference(s): 60 Aryl vinyl ketones RC(O)CHR1CH2R2 and RC(O)CH:CH2 I and II [R = C1-2 alkyl, Ph, 4-Cl-Ph; R1 = H, Me, Ph; R2 = Cl, Me2N, MeS, Me2S+, (Ph)3P+] were very effective as microbiocides. E.g. I(R = 4-Cl-Ph; R1 = H; R2 = Cl) [3946-29-0] showed a microbiostatic min. concn. (MMC) of 2 ppm for slime bacteria (Kato, K., and Fukumura, T., 1962). .