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Methyl(methylidene)diphenyl-λ5-phosphane, also known as diphenylmethylidynephosphorane, is a phosphorus-containing organometallic compound with the chemical formula C14H13P. It is a colorless, crystalline solid that is sensitive to air and moisture. methyl(methylidene)diphenyl-lambda~5~-phosphane is characterized by a phosphorus atom bonded to a methyl group, a phenyl group, and a methylidene group (a carbon atom with a double bond to the phosphorus). It is an important reagent in organic synthesis, particularly in the formation of carbon-phosphorus bonds and as a ligand in transition metal complexes. Due to its reactivity, it is typically handled under an inert atmosphere and is used in the synthesis of various phosphorus-containing compounds and as a precursor in the preparation of other organophosphorus compounds.

4554-22-7

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4554-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4554-22-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,5 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4554-22:
(6*4)+(5*5)+(4*5)+(3*4)+(2*2)+(1*2)=87
87 % 10 = 7
So 4554-22-7 is a valid CAS Registry Number.

4554-22-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl-methylidene-diphenyl-λ<sup>5</sup>-phosphane

1.2 Other means of identification

Product number -
Other names Phosphorane,methylmethylenediphenyl

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

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More Details:4554-22-7 SDS

4554-22-7Relevant academic research and scientific papers

Can C-H ··· C(π) bonding be classified as hydrogen bonding? A systematic investigation of C-H ··· C(π) bonding to cyclopentadienyl anions

Harder

, p. 1852 - 1861 (2007/10/03)

The following ammonium and phosphonium cyclopentadienide complexes have been prepared, crystallized and investigated structurally: [Cp]-[Et4N]+, [Cp]-[Et4P]+, [Cp]-[Ph3/sub

ORTHO-LITHIATION OF TRIPHENYLPHOSPHINO-METHYLID AND, ALSO, TRIPHENYLPHOSPHINE OXIDE

Schaub, Bruno,Jenny, Titus,Schlosser, Manfred

, p. 4097 - 4100 (2007/10/02)

While upon treatment with methyl- or butyllithium triphenylphosphonio-methylid (1) undergoes extensive ligand exchange (leading to 4) it reacts with sec- or tert-butyllithium mainly at the ortho-position exchanging one hydrogen against a lithium atom (to give 3).

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