Reference

Continuous production of polyarylamines containing methylene bridges

Continuous production of polyarylamines containing methylene bridges. Wenner, Gotthilf; Hahn, Eugen (BASF A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3225135 A1 12 Jan 1984, 14 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C087-50; C07C085-24; C08G012-08; C08G018-32. APPLICATION: DE 82-3225135 6 Jul 1982. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 25 Polyamines with a high content of bis(aminoaryl)methanes are prepd. continuously by mixing arom. amines, HCHO [50-00-0], and acid catalysts at ￡50° and passing the mixts. through pipe reactors with temps. increasing steadily from 50 to 90-100°. Thus, a stirred mixer was fed at 48° and residence time 32 min with a mixt. of PhNH2 [62-53-3] 363, 40% HCHO 112.5, and 31% HCl 372 g/h, and the mixt. was passed through a streaming tube (diam. 36 mm, length 700 mm, residence time 45 min) heated to 100° and neutralized with 560 g/h 25% NaOH to give 257 g/h mixt. of CH2(C6H4NH2-p)2 [101-77-9] 74.4, 2,2'-isomer 0.1, 2,4'-isomer 1.7%, and [-CH2C6H3(NH2)-]n 23.8%.Except for chemicals metioned above, 62-53-3 and 25214-70-4 are also used. .

Reactions with 2-methyl-6-phenylthiazolo[3,2-b]-s-triazol-3(2H)-one and 7-phenylthiazino[3,2-b]-s-triazol-4(2H,3H)-one

Reactions with 2-methyl-6-phenylthiazolo[3,2-b]-s-triazol-3(2H)-one and 7-phenylthiazino[3,2-b]-s-triazol-4(2H,3H)-one. Ali, Mohamed I.; Soliman, Adly A. W. (Fac. Sci., Univ. Cairo, Giza, Egypt). J. Prakt. Chem., 325(5), 869-75 (English) 1983. CODEN: JPCEAO. ISSN: 0021-8383.There are some commonly used reagents with their cas registry numbers 104-94-9 and 62-53-3 in this article. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Treating mercaptotriazoline I (R = H) with MeCHBrCO2H or BrCH2CH2CO2H gave I (R = CHMeCO2H, CH2CH2CO2H), which cyclized to give thiazolo- and thiazinotriazolones II (X = CHMe, CH2CH2). II (X = CH2, CHMe, CH2CH2) reacted with R1NH2 (R1 = NH2, PhNH, Ph, 4-MeOC6H4, 3-MeC6H4) to give the ring-opened products I (R = XCONHR1). Condensation of I (R = XCONHNH2) with R1CHO (R1 = Ph, 3-O2NC6H4, 4-O2NC6H4, 4-MeOC6H4) gave I (R = XCONHN:CHR1). II (X = CHMe) coupled with diazotized anilines to give II (X = CMeN:NR2; R2 = Ph, 3-MeC6H4, 4-MeC6H4, 4-MeOC6H4). .