I found the field of Chemistry very interesting. Saw the article Copper-Catalyzed Four-Component Reaction for the Synthesis of N-Difluoroethyl Imides published in 2019. HPLC of Formula: C7H5NO4, Reprint Addresses Hu, XG (corresponding author), Jiangxi Normal Univ, Natl Engn Res Ctr Carbohydrate Synth, Nanchang 330022, Jiangxi, Peoples R China.; Hu, XG (corresponding author), Jiangxi Normal Univ, Key Lab Small Funct Organ Mol, Minist Educ, Nanchang 330022, Jiangxi, Peoples R China.. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid
A general and efficient method for the synthesis N-difluoroethyl imides has been developed. This copper-catalyzed four-component reaction proceeds via in-situ generated difluorodiazomethane, which does not require prior formation and transferring. The reaction is scalable, tolerant toward a range of functional groups, and also suitable for the late-stage functionalization of drugs and drug-like molecules.
HPLC of Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Gao, Y; Peng, SQ; Liu, DY; Rui, PX; Hu, XG or concate me.
Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem