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Ethyltriphenylphosphonium bromide

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Name

Ethyltriphenylphosphonium bromide

EINECS 216-223-3
CAS No. 1530-32-1 Density
Solubility water: 120 g/L (23 °C) Melting Point 203-205 °C(lit.)
Formula C20H20BrP Boiling Point
Molecular Weight 371.26 Flash Point 200 °C
Transport Information UN 3077 9/PG 3 Appearance white to off-white crystalline powder
Safety 61-36/37/39-26-36 Risk Codes 22-51/53-36/37/38-21/22
Molecular Structure Molecular Structure of 1530-32-1 (Phosphonium,ethyltriphenyl-, bromide (1:1)) Hazard Symbols HarmfulXn,DangerousN
Synonyms

Ethyltriphenylphosphoniumbromide (6CI,7CI);Phosphonium, ethyltriphenyl-, bromide (8CI,9CI);TEP(onium compound);Triphenylethylphosphonium bromide;

 

Ethyltriphenylphosphonium bromide Specification

The Ethyl triphenyl phosphonium bromide , with cas registry number of 1530-32-1, is also called Ethyl (trimethylsilyl)acetate ; Phosphonium, ethyltriphenyl-, bromide ; Phosphonium, ethyltriphenyl-, bromide (1:1) . Its IUPAC name is called ethyl(triphenyl)phosphanium bromide . It belongs to the classes of (1)Phosphonium Compounds ; (2)Synthetic Organic Chemistry ; (3)Wittig & Horner-Emmons Reaction ; (4)Wittig Reaction ; (5)Phosphonium SaltsC-C Bond Formation ; (6)Greener Alternatives: Catalysis ; (7)Phase Transfer Catalysts ; (8)C-C Bond Formation ; (9)Olefination ; (10)Wittig Reagents.

Physical properties of this chemical are: (1) EINECS: 216-223-3; (2) BRN: 3599630; (3) Melting Point: 203-205 °C(lit.); (4) Flash Point: 200 °C; (5) Water Solubility: 120 g/L (23 °C) ; (6) Freely Rotating Bonds: 4.

Preparation of Ethyl triphenyl phosphonium bromide : this chemical is prepared by reaction of triphenylphosphane with bromoethane .


Keep the reaction at the temperature of 100 ℃ for 1 hour. This chemical would be produced. The yield is about 91%.

Uses of Ethyl triphenyl phosphonium bromide : It is used in organic synthesis to prepare other chemicals. For example,


This reaction will need reagent KOt-Bu and solvent benzene. The temperature is the key factor. First keep it at 0 deg C - 4 deg C for 2 h. Then Rt, 72 h. The yield is 32%.

When you are using this chemical, please be cautious about it as the following:
This chemical is sensitive to hygroscopic. It is harmful in contact with skin and if swallowed and irritating to eyes, respiratory system and skin. It is also toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. If you want to use it, remember wear suitable protective clothing, gloves and eye/face protection. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Store it in a tightly closed container in a cool, dry place. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dangerous fire hazard in the form of dust when exposed to heat or flame.

You can still convert the following datas into molecular structure:
(1) SMILES:BrP(c1ccccc1)(c2ccccc2)(c3ccccc3)CC;
(2) InChI:InChI=1/C20H20BrP/c1-2-22(21,18-12-6-3-7-13-18,19-14-8-4-9-15-19)20-16-10-5-11-17-20/h3-17H,2H2,1H3;
(3) InChIKey:RZWDOHOQSSGFOR-UHFFFAOYAV

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