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Tris(hexahydro-1H-azepin-1-yl)phosphine, also known as THPA, is a phosphine ligand that is widely used in homogeneous catalysis. It is a cyclic, tertiary phosphine with three six-membered rings, which provides a sterically hindered environment that can stabilize metal complexes and enhance their catalytic activity. THPA is known for its strong electron-donating ability and its ability to form stable complexes with various transition metals, making it a valuable ligand in the synthesis of olefins, polymers, and other organic compounds. Its unique structure also contributes to its stability and resistance to oxidation, which are important properties in industrial applications.

23720-18-5

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23720-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23720-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,2 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23720-18:
(7*2)+(6*3)+(5*7)+(4*2)+(3*0)+(2*1)+(1*8)=85
85 % 10 = 5
So 23720-18-5 is a valid CAS Registry Number.

23720-18-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name tris(azepan-1-yl)phosphane

1.2 Other means of identification

Product number -
Other names 1H-Azepine,1,1',1''-phosphinidynetris[hexahydro

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:23720-18-5 SDS

23720-18-5Downstream Products

23720-18-5Relevant academic research and scientific papers

A CONVENIENT AND HIGH YIELD SYNTHESIS OF TERTIARY (AMINO) PHOSPHINES BY TRANSAMINATION ROUTE

Hussain, L. Altaf,Elias, Anil J.,Rao, M. N. Sudheendra

, p. 5983 - 5986 (1988)

Tris(diethylamino)phosphine affords tertiary (amino) phosphines of pyrrolidine, piperidine, hexamethyleneimine, morpholine and N-methylpiperazine in nearly quantitative yields by transamination route - an easy and convenient synthesis occuring under mild conditions.

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