6291-08-3

Basic information

• Product Name: bis(2,2-dimethylpropyl) sulfite
• Synonyms: dineopentyl sulfite; Neopentyl sulfite
• CAS NO: 6291-08-3
• Molecular Formula: C₁₀H₂₂O₃S
• Molecular Weight: 222.3449
• Mol File: 6291-08-3.mol

Chemical Properties

• Boiling Point: 257°C at 760 mmHg
• Flash Point: 109.2°C
• Density: 1.029g/cm³
• Vapor Pressure: 0.024mmHg at 25°C
• Refractive Index: 1.473
• CAS DataBase Reference: bis(2,2-dimethylpropyl) sulfite(CAS DataBase Reference)
• NIST Chemistry Reference: bis(2,2-dimethylpropyl) sulfite(6291-08-3)
• EPA Substance Registry System: bis(2,2-dimethylpropyl) sulfite(6291-08-3)

Safety Data

• Hazardous Substances Data: 6291-08-3(Hazardous Substances Data)

Upstream product

• 35505-36-3 neopentyl chlorosulfite 
• 75-84-3 2,2-dimethyl-propanol-1 
• 110-86-1 pyridine 
• 7719-09-7 thionyl chloride 
• 60-29-7 diethyl ether 

Relevant articles and documents

REACTIONS OF N-SULFINYL-p-TOLUENESULFONAMIDE WITH ALCOHOLS

N-Sulfinyl-p-toluenesulfonamide (1) reacted with triaryl- and diarylmethanols to give predominantly N-substituted sulfonamides and SO2 presumably via carbonium ion intermediates.When carbonium ion forming alcohols, such as t-BuOH and Ph2C(Me)OH, were used, the predominant products were alkenes and p-toluenesulfonamide.Allylic alcohols afforded N-substituted sulfonamides, along with dienes and p-toluenesulfonamide.Alcohols wich could not predictably give relatively stable intermediate carbonium ions, gave either dialkyl sulfites or dialkyl ethers, along with p-toluenesulfonamide.In one case, namely with 9-phenylfluorenol, the 1:1 adduct with 1 (an amidosulfite) was isolated.A mechanism for the reaction is proposed.