Detail of "5781-53-3"

Reference

Oxalic acid diarylamides as UV absorbers in polymers

Oxalic acid diarylamides as UV absorbers in polymers. Neumann, Peter; Hettche, Albert; Weiss, Stefan; Trauth, Hubert (BASF A.-G. , Fed. Rep. Ger.). Ger.In this article, certain chemicals are used. One of their cas registry numbers is 93369-22-3 Offen. DE 3305638 A1 23 Aug 1984, 24 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C103-38; C08K005-20; C08L023-00; C09D005-32. APPLICATION: DE 83-3305638 18 Feb 1983. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 25 The oxamides I (R = H, C1-12 alkyl) are light stabilizers for plastics, coatings, etc. Thus, the reaction of ClCOCO2Et [5781-53-3] with 2-methoxyaniline [90-04-0] and 5-aminoindan [24425-40-9] gave I (R = Me) [93369-12-1] which was resistant to migration in PVC [9002-86-2] moldings. .

Total synthesis of Na-methylsecodine

Total synthesis of Na-methylsecodine. Atta-ur-Rahman; Sultana, Mumtaz; Hassan, Iltifat; Hasan, Naeem M. (HEJ Res. Inst. 536-78-7 and 5781-53-3 are also occured in this study. Chem., Univ. Karachi, Karachi, Pak.). J. Chem. Soc., Perkin Trans. 1, (9), 2093-6 (English) 1983. CODEN: JCPRB4. ISSN: 0300-922X. DOCUMENT TYPE: Journal CA Section: 31 (Alkaloids) The title compd. [I; R = C(:CH2)CO2Me] (II) was prepd. in 8 steps from indole-3-acetic acid. Key steps were the Friedel-Crafts acylation of I (R = H) with ClCOCO2Me in CH2Cl2 contg. AlCl3 for 24 h to give 55% I (R = COCO2Me) which on Wittig reaction with Ph3P+Me Br- in Et2O contg. MeLi at -20° for 72 h gave 45% II. .