US 11,840,545 B1
Spirooxindole-copper complex as novel efficient anticorrosion agent for C-steel
Hassan H. Hammud, Al-Ahsa (SA); Waleed A. S. Aljamhi, Al-Ahsa (SA); Ayman El-Faham, Al-Ahsa (SA); Assem Barakat, Al-Ahsa (SA); Ihab Shawish, Al-Ahsa (SA); Nadeem S. Sheikh, Al-Ahsa (SA); and Khurshid Ayub, Al-Ahsa (SA)
Assigned to KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed by KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed on Jul. 14, 2023, as Appl. No. 18/222,277.
Int. Cl. C07D 513/20 (2006.01); C07F 1/08 (2006.01)
CPC C07D 513/20 (2013.01) [C07F 1/08 (2013.01)] 16 Claims
 
1. A compound of the formula I:

OG Complex Work Unit Chemistry
wherein X1, X2, and X3 are each independently selected from the group consisting of chlorine, hydrogen, NO2, and bromine.