Detail of "7022-92-6"

Reference

Separation of isotopically labeled componds

Separation of isotopically labeled componds. Araki, Mikio; Tanaka, Nobuo (Japan Spectroscopic Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 61293535 A2 24 Dec 1986 Showa, 10 pp. (Japan) CODEN: JKXXAF. CLASS: ICM: B01D059-26. APPLICATION: JP 85-136362 21 Jun 1985. DOCUMENT TYPE: Patent CA Section: 71 (Nuclear Technology) A labeled compd. contg. labeling isotopes in an ionizable functional group is purified or sepd.There are some reagents with their cas registry numbers 7022-92-6 and 62-53-3 are used in this study. from other isotopically labeled compds. by using a liq. chromatog. column 350 cm long and H2O or a H2O-org. solvent mixt. as the mobile phase. Each isotopically labeled compd. is sepd. at a certain pH in a partially ionized state, due to their differences in retention time. The compds. may be carboxylic acids, phenols, sulfonic acids, or amines, and the labeling isotopes are from N, O, C, and S. Thus, a mixt. contg. PhC16O16OH (I), PhC18O18OH (II), and PhC18O16OH (III) was passed through a 60-cm column packed with Cosmosil 5 C18-P of pH 4.83 and at 0.8 mL/h. The recovered I and II were 45-99% pure and III was 10-70% pure. The method is used in producing nuclear targets. .

Synthesis and Characterization of p-Phenylenediamine Derivatives Bearing an Electron-Acceptor Unit

Synthesis and Characterization of p-Phenylenediamine Derivatives Bearing an Electron-Acceptor Unit. Sakurai, Hidehiro; Ritonga, Mendra T. S.; Shibatani, Harumi; Hirao, Toshikazu (Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 567-0871, Japan). Journal of Organic Chemistry, 70(7), 2754-2762 (English) 2005 American Chemical Society. CODEN: JOCEAH. ISSN: 0022-3263. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Section cross-reference(s): 35 Two series of aniline oligomers bearing fused heterocycles as an electron-acceptor unit were synthesized. They consist of aniline or its derivs.There are some reagents like 7022-92-6 is used in this study. as an electron donor and benzothiadiazole (BT) or quinoxaline (QX) as an electron-acceptor unit. Benzothiadiazoles were synthesized by palladium-catalyzed amination. Quinoxalines were prepd. by palladium-catalyzed amination or transformation from the benzothiadiazoles. These compds. showed a HOMO-LUMO gap smaller than those of their analogs such as thiophene-substituted BT/QXs. Cyclic voltammetry revealed that the electrochem. behavior is dependent on the position of the acceptor heterocycle. Chem. oxidn. with Ag2O afforded the corresponding 1,4-quinonediimine derivs. as an E,E-isomer, stereoselectively. As for the BT pentamer, the first oxidn. selectively occurred at the amino group adjacent to the benzothiadiazole unit, giving the regiospecific half-oxidized derivs. Furthermore, the fully oxidized deriv. was isolated and characterized. .