56563-37-2

Basic information

• Product Name: 2-Butynyl 4-methylbenzenesulfonate
• Synonyms: TIMTEC-BB SBB008911;2-BUTYNYL 4-TOLUENESULFONATE;2-BUTYNYL-PARA-TOLUENESULFONATE;2-BUTYNYL P-TOLUENESULFONATE;2-BUTYNYL P-TOLUENESULPHONATE;1-(p-Tosyloxy)-2-butyne;2-BUTYNYL-para-TOLUENESULFONATE 98%;2-Butynyl 4-methylbenzenesulfonate
• CAS NO: 56563-37-2
• Molecular Formula: C₁₁H₁₂O₃S
• Molecular Weight: 224.28
• Mol File: 56563-37-2.mol
• Article Data: 19

Chemical Properties

• Melting Point: 47 °C
• Boiling Point: 355.2 °C at 760 mmHg
• Flash Point: >110℃
• Appearance: /
• Density: 1,012 g/cm3
• Vapor Pressure: 6.53E-05mmHg at 25°C
• Refractive Index: 1.538
• Storage Temp.: Refrigerator (+4°C)
• Solubility: soluble in Methanol
• Water Solubility: Insoluble
• BRN: 3300477
• CAS DataBase Reference: 2-Butynyl 4-methylbenzenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Butynyl 4-methylbenzenesulfonate(56563-37-2)
• EPA Substance Registry System: 2-Butynyl 4-methylbenzenesulfonate(56563-37-2)

Safety Data

• Hazard Codes: Xi,Xn
• Statements: 36/37/38-22
• Safety Statements: 26-36/37/39-37/39
• WGK Germany: 3
• Hazardous Substances Data: 56563-37-2(Hazardous Substances Data)

Usage

Chemical Properties

Brown crystalline powder

InChI:InChI=1/C11H12O3S/c1-3-4-9-14-15(12,13)11-7-5-10(2)6-8-11/h5-8H,9H2,1-2H3

Upstream product

• 764-01-2 methyl propargyl alcohol 
• 104-15-4 toluene-4-sulfonic acid 
• 98-59-9 p-toluenesulfonyl chloride 
• 4124-41-8 p-toluenesulfonylanhydride 

Downstream Products

• 4626-58-8 benzyl(but-2-yn-1-yl)amine 
• 18476-67-0 2-(4-methoxyphenyl)-5-methylbenzofuran 
• 13610-03-2 but-2-yn-1-yl(phenyl)sulfide 
• 64070-51-5 Mn(CO)4(P(C₆H₅)3)CH₂CCCH₃ 
• 173539-27-0 [(PPh3)2Pt(η(3)-CH2CCMe)]OSO2C6H4CH3 
• 173539-37-2 [(PPh3)2Pd(η(3)-CH2CCMe)]OSO2C6H4CH3 
• 1361060-55-0 tert-butyl but-2-ynyl(2-iodophenyl)carbamate 
• 482649-59-2 methyl 2-(but-2-yn-1-yl)-2-phenylhex-4-ynoate 
• 60011-63-4 N-(but-2-yn-1-yl)-N-methylaniline 
• 1620300-90-4 methyl 5-chloro-2-(2-butyn-1-yloxy)benzoate 
• 488150-68-1 methyl 3-methyl-2-(2-butyn-1-yloxy)benzoate 
• 1620300-84-6 methyl 2-(2-butyn-1-yloxy)benzoate 

Relevant articles and documents

Copper-catalyzed regiodivergent silacarboxylation of allenes with carbon dioxide and a silylborane

A regiodivergent silacarboxylation of allenes under a CO2 atmosphere with PhMe2Si-B(pin) as a silicon source in the presence of a copper catalyst at 70 °C has been developed. The regioselectivity of the reaction is successfully rever

Directed Cobalt-Catalyzed anti-Markovnikov Hydroalkylation of Unactivated Alkenes Enabled by "co-H" Catalysis

The earth-abundant cobalt-catalyzed anti-Markovnikov hydroalkylation of unactivated alkenes with oxime esters was achieved by introducing an 8-aminoquinoline directing group on the alkenes. The catalytic system, consisting of commercially available Co(acac)3 and PhMeSiH2, enables the construction of unfunctionalized C(sp3)-C(sp3) bonds and features exclusive anti-Markovnikov selectivity, good functional group tolerance, and the avoidance of an extra ligand, oxidant, or base. Mechanistic insight into this new catalytic system indicates the involvement of both alkyl radical and cobalt hydride intermediates.

Construction of All-Carbon Chiral Quaternary Centers through CuI-Catalyzed Enantioselective Reductive Hydroxymethylation of 1,1-Disubstituted Allenes with CO2

A catalytic enantioselective construction of all-carbon chiral quaternary centers through reductive hydroxymethylation of 1,1-disubstituted allenes with CO2 has been developed. In the presence of a copper/Mandyphos catalyst, CO2 is t