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Di(4-tolyl)methylphosphine oxide, also known as bis(4-methylphenyl)methylphosphine oxide, is an organophosphorus compound with the chemical formula C15H17OP. It is a colorless to pale yellow crystalline solid that is soluble in organic solvents. di(4-tolyl)methylphosphine oxide is primarily used as a ligand in coordination chemistry, particularly in the synthesis of transition metal complexes. It is also employed as a reagent in various organic reactions, such as the formation of carbon-phosphorus bonds and the oxidation of phosphines to phosphine oxides. Di(4-tolyl)methylphosphine oxide is synthesized by the reaction of di(4-tolyl)methylphosphine with an oxidizing agent, such as hydrogen peroxide or m-chloroperoxybenzoic acid. Due to its potential applications in the pharmaceutical and agrochemical industries, research on di(4-tolyl)methylphosphine oxide and its derivatives is ongoing.

723-45-5

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723-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 723-45-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 723-45:
(5*7)+(4*2)+(3*3)+(2*4)+(1*5)=65
65 % 10 = 5
So 723-45-5 is a valid CAS Registry Number.

723-45-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name di(4-tolyl)methylphosphine oxide

1.2 Other means of identification

Product number -
Other names Bis-(p-tolyl)-methylphosphinoxyd

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:723-45-5 SDS

723-45-5Downstream Products

723-45-5Relevant academic research and scientific papers

Nickel-catalyzed coupling of R2P(O)Me (R = aryl or alkoxy) with (hetero)arylmethyl alcohols

Li, Wei-Ze,Wang, Zhong-Xia

, p. 2233 - 2242 (2021/03/24)

α-Alkylation of methyldiarylphosphine oxides with (hetero)arylmethyl alcohols was performed under nickel catalysis. Various arylmethyl and heteroarylmethyl alcohols can be used in this transformation. A series of methyldiarylphosphine oxides were alkylated with 30-90% yields. Functional groups on the aromatic rings of methyldiarylphosphine oxides or arylmethyl alcohols including OMe, NMe2, SMe, CF3, Cl, and F groups can be tolerated. The conditions are also suitable for the α-alkylation reaction of dialkyl methylphosphonates.

A new palladium-catalyzed P-C coupling reaction: Synthesis of triarylphosphine oxides and diarylmethylphosphine oxides

Stark, Gene A.,Riermeier, Thomas H.,Beller, Matthias

, p. 1703 - 1711 (2007/10/03)

The first palladium-catalyzed P-C coupling reaction of aryl halides with (hydroxymethyl)phosphines is described. Hydroxymethylphosphines act as cheap and easy to use H3PO and CH3P(O)H2 equivalents. Tertiary diarylmethylphosphine oxides 5 and triarylphosphine oxides 6 are accessible in a one pot reaction in overall yields between 45-60%.

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