Compound Q&A
How is Chlorophosphonazo I (CAS: 1938-82-5) typically synthesized?
Answer
Chlorophosphonazo I (CAS: 1938-82-5) is typically synthesized by the reaction of phosphorus oxychloride with chlorophenol in the presence of a catalyst such as pyridine. The reaction involves the formation of a phosphonate ester, followed by the coupling of the phenolic hydroxyl group to form the azo compound. The yield is generally good, and the product can be isolated by filtration and recrystallization.
About
CAS No
1938-82-5
English Name
Chlorophosphonazo I
Molecular Formula
C16H12ClN2O11PS2
Molecular Weight
538.8 g/mol
SMILES
C1=CC(=C(C=C1Cl)P(=O)(O)O)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)O)S(=O)(=O)O)O)O
InChIKey
MEAUOUSSRBVKRD-UHFFFAOYSA-N
Last Updated: 2026-03-16 13:10
