Reference

Nucleophilic substitution of haloanthraquinones carried out in organic solvents

Nucleophilic substitution of haloanthraquinones carried out in organic solvents. Adamek, Milan; Zamykal, Jaroslav; Vetesnik, Pavel (Vys. Sko. Chemickotechnol., Pardubice, Czech.). Sb. Ved. Pr. 109-73-9 and 78-81-9 which are cas registry numbers are also used here., Vys. Sk. Chemickotechnol. Pardubice, 45, 305-20 (Czech) 1982. CODEN: SVPVA9. ISSN: 0553-2124. DOCUMENT TYPE: Journal CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 22 Kinetic data are given for nucleophilic substitution of 1-chloro- (I) [82-44-0] and 2-chloroanthraquinone [131-09-9] with BuNH2 [109-73-9], of I, 1-fluoro- (II) [569-06-2], 1-bromo- [632-83-7], and 1-iodoanthraquinone [3485-80-1] with cyclohexylamine [108-91-8], and of I and II with PrNH2 [107-10-8], iso-PrNH2 [75-31-0], BuNH2, and iso-BuNH2 [78-81-9]. The effect of aprotic solvents of different polarity on the reaction course was detd. .

Hydrogen recovery by alcohol scrubbing in alcohol amination

Hydrogen recovery by alcohol scrubbing in alcohol amination. Turcotte, Michael G. (Air Products and Chemicals, Inc., USA). U.S. US 4418214 A 29 Nov 1983, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C07C085-06. 1333-74-0 and 7664-41-7 which are cas registry numbers are also used here. NCL: 564479000. APPLICATION: US 82-434768 18 Oct 1982. DOCUMENT TYPE: Patent CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) H is recovered in the prepn. of amines from NH3 and alcs. in H by scrubbing of offgases with fresh alc. Thus, in the prepn. of iso-PrNH2 [75-31-0], iso-PrOH [67-63-0] was used to scrub the offgases at 80°/240 psi, unabsorbed H was recycled, and the scrubbing soln. was distd. to recover iso-PrOH. .