460923

Propargyl chloroformate

96%

• Synonym(s): (Prop-2-ynyloxy)carbonyl chloride, 2-Propyn-1-yl carbonochloridate, 2-Propynyl chloroformate, Prop-2-yn-1-yl carbonochloridate, Propargyloxycarbonyl chloride
• Linear Formula: HC≡CCH₂OCOCl
• CAS Number: 35718-08-2
• Molecular Weight: 118.52
• Beilstein: 1745399
• MDL number: MFCD00270127
• UNSPSC Code: 12352100
• PubChem Substance ID: 24869771
• NACRES: NA.22

Properties

• vapor pressure: 0.65 psi ( 20 °C)
• Quality Level: 100
• Assay: 96%
• reaction suitability: reaction type: click chemistry
• refractive index: n20/D 1.435 (lit.)
• bp: 118-122 °C (lit.)
• density: 1.215 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: ClC(=O)OCC#C
• InChI: 1S/C4H3ClO2/c1-2-3-7-4(5)6/h1H,3H2
• InChI key: RAMTXCRMKBFPRG-UHFFFAOYSA-N

Description

General description

Propargyl chloroformate is a propargyl ester. It serves as a protecting group for the hydroxy and amino functional group. Rates of solvolysis of propargyl chloroformate has been analyzed in various solvents of widely varying nucleophilicity and ionizing power values using the extended Grunwald-Winstein equation.

Application

Propargyl chloroformate may be used for the preparation of the following:

• binaphthol-diacetylene derivatives
• propargyl pentafluorophenyl carbonate
• N-Poc protected amino acids (Poc = propargyloxycarbonyl)

Safety Information

• Pictograms: GHS02,GHS05,GHS06
• Signal Word: Danger
• Hazard Statements: H226 - H302 - H311 + H331 - H314
• Precautionary Statements: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Flam. Liq. 3 - Skin Corr. 1B
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 86.0 °F - closed cup
• Flash Point(C): 30 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves