3782-61-4

Basic information

• Product Name: ethyl phenylamidosulfate
• Synonyms: ethyl phenylamidosulfate
• CAS NO: 3782-61-4
• Molecular Weight: 201.246
• Mol File: 3782-61-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: ethyl phenylamidosulfate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl phenylamidosulfate(3782-61-4)
• EPA Substance Registry System: ethyl phenylamidosulfate(3782-61-4)

Safety Data

• Hazardous Substances Data: 3782-61-4(Hazardous Substances Data)

Upstream product

• 64-17-5 ethanol 
• 60260-49-3 phenylsulfamyl chloride 
• 62-53-3 aniline 
• 3768-55-6 N-trimethylsilylaniline 
• 104184-87-4 chlorine ethoxysulfonate 
• 658-33-3 phenylsulfurimidoyl difluoride 

Downstream Products

• 104254-92-4 Benzyl-phenyl-sulfamic acid ethyl ester 
• 104254-91-3 Methyl-phenyl-sulfamic acid ethyl ester 
• 758640-21-0 N-Benzylaniline 

Relevant articles and documents

Insertion of Sulfur Trioxide into the N-Si bond of Anilinotrimethylsilane. An Improved Method for the Preparation of Free Phenylamidosulfuric Acid

The reaction between anilinotrimethylsilane (1) and a variety of sulfonating agents has been studied.With SO3, 5, or a dioxane-sulfur trioxide complex a sulfur trioxide molecule was inserted selectively into the N-Si bond of 1 to yield trimethylsilyl phenylamidosulfate (2), which on treatment with acetic acid, trifluoroacetic acid, or methanol gave free phenylamidosulfuric acid (3).The reaction of 1 with ClSO3H afforded 3 directly, but the product was contaminated with slight amounts of anilinium hydrogensulfate and anilinium chloride.The reaction of 1 with 10 yielded a mixture containing dianilinium (4-sulfonatophenylamido)sulfate, 4-aminobenzenesulfonic acid, and ethyl phenylamidosulfate as major products (after desilylation).The reaction of 1 with 5 has been found to provide an improved method for preparing 3.

Synthesis of Arylsulfamic Acid Esters using Phase-Transfer and Triethylamine-Mediated Methods

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