21961-55-7

Basic information

• Product Name: benzoic-p-chlorobenzoic anhydride
• Synonyms: benzoic-p-chlorobenzoic anhydride
• CAS NO: 21961-55-7
• Molecular Weight: 260.677
• Mol File: 21961-55-7.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: benzoic-p-chlorobenzoic anhydride(CAS DataBase Reference)
• NIST Chemistry Reference: benzoic-p-chlorobenzoic anhydride(21961-55-7)
• EPA Substance Registry System: benzoic-p-chlorobenzoic anhydride(21961-55-7)

Safety Data

• Hazardous Substances Data: 21961-55-7(Hazardous Substances Data)

Upstream product

• 98-88-4 benzoyl chloride 
• 74-11-3 para-chlorobenzoic acid 
• 122-01-0 4-chloro-benzoyl chloride 
• 65-85-0 benzoic acid 
• 582-25-2 Potassium benzoate 
• 15163-60-7 p-chlorobenzoic acid potassium salt 

Downstream Products

• 22913-11-7 isopropyl 4-chlorobenzoate 
• 6833-15-4 4-chlorobenzanilide 

Relevant articles and documents

Anhydrides from aldehydes or alcohols via oxidative cross-coupling

A novel type of metal-free oxidative cross-coupling for the synthesis of symmetrical and mixed anhydrides from aldehydes or benzylic alcohols has been developed. The aldehydes or alcohols were converted in situ into their corresponding acyl chlorides, which were then reacted with an array of carboxylic acids. The methodology has a general applicability, and was successfully employed to prepare either aromatic or aliphatic symmetrical anhydrides and mixed anhydrides, which are very unstable compounds.

Synthesis of anhydrides from acyl halides and zinc carboxylates under aprotic conditions

Synthesis of symmetric as well as unsymmetrical carboxylic acid anhydrides from zinc carboxylates and acid chlorides under aprotic conditions in high yields is reported.

A facile synthesis of acid anhydrides

A facile synthesis of symmetric and unsymmetric acid anhydrides using phase-transfer catalysis is described. By this method different types of anhydrides can be obtained in high yields under mild conditions even on microscale levels.