156661-90-4

Basic information

• Product Name: Phosphoric acid 2,4-dichloro-6-methanesulfonylamino-phenyl ester diisopropyl ester
• Synonyms: Phosphoric acid 2,4-dichloro-6-methanesulfonylamino-phenyl ester diisopropyl ester
• CAS NO: 156661-90-4
• Molecular Weight: 420.251
• Mol File: 156661-90-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phosphoric acid 2,4-dichloro-6-methanesulfonylamino-phenyl ester diisopropyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphoric acid 2,4-dichloro-6-methanesulfonylamino-phenyl ester diisopropyl ester(156661-90-4)
• EPA Substance Registry System: Phosphoric acid 2,4-dichloro-6-methanesulfonylamino-phenyl ester diisopropyl ester(156661-90-4)

Safety Data

• Hazardous Substances Data: 156661-90-4(Hazardous Substances Data)

Upstream product

• 67-63-0 isopropyl alcohol 
• 156661-86-8 5,7-Dichloro-2-isopropoxy-3-methanesulfonyl-3H-benzo[1,3,2]oxazaphosphole 2-oxide 
• 527-62-8 2,4-dichloro-6-aminophenol 
• 609-89-2 2,4-dichloro-6-nitrophenol 
• 156661-96-0 4,6-dichloro-2-<(methylsulfonyl)amino>phenol 
• 156661-82-4 2,5,7-trichloro-2,3-dihydro-3-(methylsulfonyl)-1,3,2-benzoxazaphosphole 2-oxide 
• 156661-99-3 5,7-dichloro-2,3-dihydro-2-methoxy-3-(methylsulfonyl)-1,3,2-benzoxazaphosphole 
• 156661-94-8 2--4,6-dichloro-O-(methylsulfonyl)phenol 

Downstream Products

• 1611-31-0 diisopropylphosphate 

Relevant articles and documents

Synthesis and Phosphorylating Properties of 2-Chloro-2,3-dihydro-3-(methylsulfonyl)-1,3,2-benzoxazaphosphole 2-Oxide. Derivatives with Chloro Substituents on the Benzene Ring

The synthesis and the use of the five-membered cyclic phosphorylating agents 1a-c are described.Their difunctional phosphorylating properties towards alkanols and hydroxylated amino acids and the cleavage reaction of the formed phosphoric acid triesters to diesters with oximate or platinum/hydrogen are investigated and compared to the "parent" compound 2-chloro-2,3-dihydro-3-(methylsulfonyl)-1,3,2-benzoxazaphosphole 2-oxide.Dichlorobenzoxazaphosphole 1b is the most reactive of these reagents with respect to phosphorylation with ring opening and oximate cleavage of the phosphoric acid triesters, followed by o-chlorobenzoxazaphosphole 1a, the unsubstituted phosphole I, and p-chlorobenzoxazaphosphole 1c. - Key Words: Phosphorylating agents, cyclic five-membered / 1,3,2-Benzoxazaphospholes