Reference

Liquid crystalline substituted 1,3-dithianes

Liquid crystalline substituted 1,3-dithianes. Demus, Dietrich; Zaschke, Horst; Vorbrodt, Hans Mathias; Pelzl, Gerhard (Ger. Dem. Rep. ). Ger. (East) DD 160061 Z 27 Apr 1983,9 pp. (German). (German Democratic Republic). CODEN: GEXXA8. CLASS: IC: C07D339-08. APPLICATION: DD 81-227954 2 Mar 1981. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 28, 75 2,5-Disubstituted 1,3-dithianes (I; R = C1-10 alkyl, substituted biphenylyl, substituted Ph, or substituted cyclohexyl; R1 = C1-10 alkyl, alkoxy, alkylcarboxyloxy, alkoxycarbonyloxy, alkylthio, substituted phenyloxycarbonyl, OH, CN, substituted Ph) are described for use in liq. crystal compns. for electrooptical display devices. These compds. are prepd. by reaction of a 2-substituted propane-1,3-dithiol with an alkanal, substituted benzaldehyde, substituted cyclohexanal or their acetals. Thus, 5-hexyl-2-[trans-4-hexylcyclohexyl]-1,3-dithiane, prepd. 28147-93-5 and 6068-72-0 which are cas registry numbers of substances are two of reagents here. by reaction of trans-4-hexylcyclohexanal with 2-hexylpropane-1,3-dithiol, showed a m.p. of 57° and a smectic (B) isotropic transition of 146°. .

4-Aroyl-4-imidazolin-2-ones

4-Aroyl-4-imidazolin-2-ones. Dage, Richard C.; Schnettler, Richard A. (Merrell Dow Pharmaceuticals, Inc., USA). Eur. Pat. Appl. EP 118790 A1 19 Sep 1984, 26 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07D233-70; C07D233-84; C07D401-06; C07D403-06; C07D403-10; C07D405-06; C07D409-06; A61K031-33. APPLICATION: EP 84-101522 14 Feb 1984. PRIORITY: US 83-466409 15 Feb 1983; US 83-562758 21 Dec 1983. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Title compds. I [Z and Z1 are O, S; R = H, alkanoyl, benzoyl; R1 = H, alkyl; R2 = cyano-, carboxy-, carbamoyl-, carbalkoxy-, amidino-, or (2-imidazolyl)phenyl, -pyridyl, -pyrryl, -thienyl, or -furyl] were prepd., and they are useful as cardiotonic agents (no data). 6068-72-0 is just another one chemical used in this study. 4-Ethyl-4-imidazolin-2-one was acylated by 4-NCC6H4COCl and AlCl3 in PhNO2 to give I (Z = Z1 = O, R = H, R1 = Et, R2 = 4-NCC6H4). .