Detail of "821-99-8"

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Degradation of n-haloalkanes and a,w-dihaloalkanes by wild-type and mutants of Acinetobacter sp

Degradation of n-haloalkanes and a,w-dihaloalkanes by wild-type and mutants of Acinetobacter sp. strain GJ70. Janssen, Dick B.; Jager, Dick; Witholt, Bernard (Groningen Biotechnol. Cent., Univ. Groningen, Groningen 9747 AG, Neth.). Appl. Environ. Microbiol., 53(3), 561-6 (English) 1987. CODEN: AEMIDF. ISSN: 0099-2240. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) A 1,6-dichlorohexane (I) [2163-00-0] -degrading strain Acinetobacter isolated from activated sludge grew and quant. 540-51-2 and 543-59-9 are cas registry numbers of chemicals which are used as reagents here. release halide from I, 1,9-dichlorononane [821-99-8], 1-chloropentane [543-59-9], 1-chlorobutane [109-69-3], 1-bromopentane [110-53-2],C2H5Br [74-96-4], and 1-iodopropane [107-08-4]. Crude exts. contained an inducible novel dehalogenase [9015-72-9] that liberated halide from the above compds. and also from 1,3-dichloropropane [142-28-9], 1,2-dibromoethane (II) [106-93-4], and 2-bromoethanol (III) [540-51-2]. II and III were toxic to the Acinetobacter strain at 10 and 5 mM, resp. Mutants resistant to II (3 mM) lacked dehalogenase activity and did not utilize haloalkanes for growth. Mutants resistant to both II (3 mM) and III (30 mM) could not oxidize or utilize alcs. and were capable of hydrolytic dehalogenation of II to ethylene glycol [107-21-1]. .

Stereoselective preparation of optically active imidazolium salts having planar chirality

All Rights Reserved. Stereoselective preparation of optically active imidazolium salts having planar chirality.In this study，107-22-2 is also used. Saigo, Kazuhiko; Ishida, Yasuhiro; Miyauchi, Hiroyuki; Sasaki, Daisuke (Tokyo University, Japan). Jpn. Kokai Tokkyo Koho JP 2007016007 A 25 Jan 2007, 20pp. (Japanese). (Japan). CODEN: JKXXAF. APPLICATION: JP 2005-202027 11 Jul 2005. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Title compds. I [n = 8-13; R1-R4 = H, C1-14 substituent; R1 = R2 = R3 = R4 1 H; R5, R6 = H, substituent; R7 = C1-14 substituent; X = halo] are prepd. from imidazoles II (R1, R2, R5-R7 = same as above; A = O, S, (un)substituted NH) and X1CHR4CHR3(CH2)mCH2X2 (R3, R4 = same as above; X1, X2 = leaving group; m = 2-7), followed by intramol. quaternization of the resulting condensation products. Thus, dimethylacetamide soln. of optically active imidazole deriv. III was treated at 140-150° for 2 days to give (S,2S)- and (R,2S)-2-isopropyl-16-methyl-4-oxa-13-aza-1-azoniabicyclo[11.2.1]hex adeca-1(16),14-diene-2,2,2-trifluoro-N-(trifluoromethylsulfonyl)acetamid e, the former of which was treated with K 2,2,2-trifluoro-N-(trifluoromethylsulfonyl)acetamide to afford ionic liq. with Tg -35°. .