US 11,890,602 B2
Application of the ionic iron (III) complex as catalyst in preparation of benzylamine compound
Hongmei Sun, Suzhou (CN); and Ruipeng Li, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
Filed on Apr. 23, 2021, as Appl. No. 17/239,496.
Application 17/239,496 is a continuation of application No. PCT/CN2018/112510, filed on Oct. 29, 2018.
Prior Publication US 2021/0237044 A1, Aug. 5, 2021
Int. Cl. C07C 253/30 (2006.01); B01J 31/22 (2006.01); B01J 37/08 (2006.01); B01J 37/12 (2006.01)
CPC B01J 31/22 (2013.01) [B01J 37/08 (2013.01); B01J 37/12 (2013.01)] 1 Claim
 
1. A method for preparing a catalyst for preparing a benzylamine compound comprising:
adding 1,3-di-tert-butylimidazole bromide into a tetrahydrofuran solution of ferric tribromide,
reacting at 60° C. for 24 h,
removing tetrahydrofuran under vacuum,
washing with hexane,
drying and extracting with tetrahydrofuran,
centrifugating to collecting a supernatant, and
adding hexane to the supernatant to precipitate the catalyst at room temperature as a red brown crystal,
wherein the catalyst is an ionic iron (III) complex having the following structure:

OG Complex Work Unit Chemistry