Detail of "93-53-8"

Reference

Selective purification by liquid membranes in an emulsion form

Buffet, P.; Colinart, P.; Renon, H.; Trouve, G. (Association pour la Recherche et le Developpement des Methodes et Processus Industriels (ARMINES), Fr.). Fr. Demande FR 2419730 12 Oct 1979, 8 pp. (French). (France). CODEN: FRXXBL. CLASS: IC: A61M001-03. APPLICATION: FR 78-7087 13 Mar 1978. DOCUMENT TYPE: Patent CA Section: 63 (Pharmaceuticals) A system for the selective removal of toxic substances, such as urea, from blood uses a liq. membrane consisting of a water-in-oil emulsion contg. a water-insol. reagents for urea, such as 4-Me2NC6H4CHO [100-10-7], an aq. phase contg. reagent that decomps. urea-aldehyde reaction product and binds urea. Thus an emulsion was prepd. from an oil phase contg. CHCl3 47, amyl ester 70, oleic acid 23, PhCHMeCHO [93-53-8] 70 mL, Simulsol 20, Span 80 20 g, and H2SO4 trace, and an aq. phase consisting of 1M HCL 210 mL. The emulsion was contacted with 20 mL of a soln. contg. 1.46 g urea/L at pH 7.3 for 20 min with stirring at 10 rpm. The urea transfer rate for 0.89 g/L.

Organocatalyzed asymmetric a-hydroxyamination of a-branched aldehydes: asymmetric synthesis of optically active N-protected a,a-disubstituted amino aldehydes and amino alcohols

All Rights Reserved.Some chemicals with cas registry numbers like 919349-47-6 and 93-53-8 are also used. Organocatalyzed asymmetric a-hydroxyamination of a-branched aldehydes: asymmetric synthesis of optically active N-protected a,a-disubstituted amino aldehydes and amino alcohols. Kim, Sung-Gon; Park, Tae-Ho (Medicinal Science Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, S. Korea). Tetrahedron Letters, 47(51), 9067-9071 (English) 2006 Elsevier Ltd. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 21 (General Organic Chemistry) Enantioselective direct a-hydroxyamination and a-aminoxylation of a-branched aldehydes using a proline-derived tetrazole catalyst is described herein. a-Hydroxyamination adducts with ￡90% ee were obtained by the reaction of nitrosobenzene with inactivated a-branched aldehydes under mild reaction conditions. .