Reference

Benzylidenecyclopentene microbicide

Benzylidenecyclopentene microbicide. Kawada, Haruaki; Hayashi, Shigeru; Kasugai, Akiyoshi; Shigematsu, Taichiro (Kumiai Chemical Industry Co., Ltd., Japan). Japan. Kokai JP 52079022 2 Jul 1977 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: A01N009-24. APPLICATION: JP 75-157028 26 Dec 1975. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemicals) 1,2-Dichloro-3,5-dioxo-4-(4'-fluorobenzylidene)-1-cyclopentene (I) [64660-99-7] synthesized from 1,2-dichloro-1-cyclopentene-3,5-dione [3229-28-5] and 4-fluorobenzaldehyde [459-57-4] is effective in controlling plant infectious diseases. I sprayed at 50 ppm on cucumber seedlings decreased Colletotrichum lagenarium infection by 99.6% within 7 days.

1,3-dioxane derivatives, liquid crystal media containing the derivatives, and electrooptical displays employing the media

1,3-dioxane derivatives, liquid crystal media containing the derivatives, and electrooptical displays employing the media. Reiffenrath, Volker; Krause, Joachim; Hittich, Reinhard; Poetsch, Eike; Plach, Herbert (Merck Patent G.m.b.H., Germany). 459-57-4 and 139301-18-1 are cas registry numbers. These chemicals are also mentioned in this article. Ger. Offen. DE 4113342 A1 31 Oct 1991, 12 pp. (Germany). CODEN: GWXXBX. CLASS: ICM: C07D319-06. ICS: C09K019-34; G02F001-13; G09F009-35. ICA: C07D213-60; C07D213-24; C07D239-26; C07D239-28; C07D405-12; C07D405-06. APPLICATION: DE 91-4113342 24 Apr 1991. PRIORITY: DE 90-4013242 26 Apr 1990. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 25, 75 The title derivs. are described by the general formula I (Q = CHazH3-z, CnH2n+1-O-, or C2H2n+1-CH=CH-; Ha = F or Cl; Z = 1, 2, or 3; n = 0-5; r = 0-5; X = X' = O and Y = Y' = CH2 or X = X' = CH2 and Y = Y' = O; Z1 and Z2 are independently selected from -C2H4- and single bonds; A1 = trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene, or 3,5-difluoro-1,4-phenylene; m = 1 or 2; X = -F, -Cl, -CF3, -CN, -OCF3, or -OCHF2; and Y and Z are independently selected from H and F). Use of the derivs. in liq. crystal media, the media, and electrooptical displays using the media are also described. .