13121-31-8

Basic information

• Product Name: 1,3,2-benzodioxaphosphole, 2-(1,1-dimethylethoxy)-
• Synonyms: 2-tert-Butoxy-1,3,2-benzodioxaphosphole
• CAS NO: 13121-31-8
• Molecular Formula: C₁₀H₁₃O₃P
• Molecular Weight: 212.1822
• Mol File: 13121-31-8.mol

Chemical Properties

• Boiling Point: 248.942°C at 760 mmHg
• Flash Point: 123.865°C
• Vapor Pressure: 0.037mmHg at 25°C
• CAS DataBase Reference: 1,3,2-benzodioxaphosphole, 2-(1,1-dimethylethoxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3,2-benzodioxaphosphole, 2-(1,1-dimethylethoxy)-(13121-31-8)
• EPA Substance Registry System: 1,3,2-benzodioxaphosphole, 2-(1,1-dimethylethoxy)-(13121-31-8)

Safety Data

• Hazardous Substances Data: 13121-31-8(Hazardous Substances Data)

Upstream product

• 1641-40-3 pyrocatechol phosphorochloridite 
• 75-65-0 tert-butyl alcohol 
• 1876-22-8 di-tert-butyl diperoxyoxalate 
• 4591-40-6 2-phenoxy-1,3,2-benzodioxaphosphole 

Downstream Products

• 507-19-7 t-butyl bromide 
• 3039-13-2 dibromoacetaldehyde 
• 3492-46-4 2-bromo-2-oxo-4,5-benzo-1,3,2-dioxaphospholane 
• 125910-85-2 2-(2',2'-dibromovinyloxy)-2-oxo-4,5-benzo-1,3,2-dioxaphospholane 
• 125910-86-3 2,3-dibenzo-1,4-dioxa-5-oxo-6-hydroxy-7,7,7-tribromo-5-phospha<4>heptane 
• 1195-15-9 2-hydroxy-1,3,2-benzodioxaphosphole 

Relevant articles and documents

Syntheses und NMR-Spektren phosphororganischer Antioxidantien und verwandter Verbindungen

The syntheses of various aliphatic, aromatic, sterically hindered, and cyclic organophosphorus compounds (phosphorous acid esters, esters chlorides and ester amides, hydrogen phosphites, phosphinates and phosphates) are reported, and general procedures for preparation are given.The compounds synthesized were investigated by means of 31P-, 1H- and 13C-n.m.r. spectroscopy, and the chemical shifts measured are listed.

Reaktionen trivalenter Phosphorverbindungen mit tert-Butoxylradikalen

The products of the reaction of several alkyl, aryl, sterically hindered aryl and cyclic phosphites, thiophosphites, benzenephosphonites and triphenylphosphine with tert-butoxyl radicals generated by thermolysis of di-tert-butyl peroxalate (DTBPO) in chlorobenzene at 50 deg C was studied. Alkyl phosphites are oxidized to the corresponding phosphates by β-scission of the intermediate phosphoranyl radicals.Phenyl phosphites react under displacement of a phenoxyl to give tert-butyl phosphites by α-scission of the intermediate phosphoranyl radicals.Sterically hindered p-methyl-phenyl phosphites also form the tert-butyl phosphites accompanied by rearranged p-hydroxyphenylmethanephosphonates.Cyclic arylene phosphites are predominantly oxidized, substitution takes place to a minor extent. Benzenephosphonites and phosphines react with tert-butoxyl radicals by oxidation to give the corresponding phosphonates and phosphine oxide, resp. Those phosphorus compounds which are oxidized with the formation of tert-butyl radicals accelerate the thermal decomposition of DTBPO under the condition studied.