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Lithium, (2-phenylethenyl)-, also known as 1-phenyl-1-buten-3-yllithium or 1-phenyl-3-buten-1-yllithium, is an organolithium compound with the chemical formula C10H9Li. It is a colorless, highly reactive, and sensitive to air and moisture substance, often used as a strong base and nucleophile in organic synthesis. Lithium, (2-phenylethenyl)- is formed by the reaction of 1-phenyl-1-buten-3-yne with n-butyllithium and is commonly employed in the formation of carbon-carbon bonds, particularly in the synthesis of complex organic molecules. Due to its reactivity, it is crucial to handle Lithium, (2-phenylethenyl)- with extreme care, typically under an inert atmosphere and at low temperatures.

4843-72-5

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4843-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4843-72-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4843-72:
(6*4)+(5*8)+(4*4)+(3*3)+(2*7)+(1*2)=105
105 % 10 = 5
So 4843-72-5 is a valid CAS Registry Number.

4843-72-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name lithium,ethenylbenzene

1.2 Other means of identification

Product number -
Other names phenylethenyllithium

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:4843-72-5 SDS

4843-72-5Relevant academic research and scientific papers

Reactions of phenylacetylene with nickel POCOP-pincer hydride complexes resulting in different outcomes from their palladium analogues

Wilson, Gleason L. O.,Abraha, Medhanei,Krause, Jeanette A.,Guan, Hairong

, p. 12128 - 12136 (2016/01/15)

Nickel POCOP-pincer hydride complexes [2,6-(R2PO)2C6H3]NiH (R = iPr, 4a; R = cPe = cyclopentyl, 4b) react with phenylacetylene to generate [2,6-(R2PO)2C6H3]NiC(Ph)=CH2 (5a-b) as the major product and (E)-[2,6-(R2PO)2C6H3]NiCH=CHPh (6a-b) as the minor product. The 2,1-insertion is more favorable than the 1,2-insertion and both pathways involve cis addition of Ni-H across the C≡C bond. Unlike the palladium case, alkynyl complexes [2,6-(R2PO)2C6H3]NiC≡CPh (7a-b) and H2 are not produced in the nickel system. The more bulky hydride complex [2,6-(tBu2PO)2C6H3]NiH (4c) shows no reactivity towards phenylacetylene. Catalytic hydrogenation of phenylacetylene with 4a-b takes place at an elevated temperature (70-100 °C) and proves to be heterogeneous. The structures of 5b, 6a, 7a and 7b have been studied by X-ray crystallography.

Process for purification of starting materials for metal catalysed reactions and a purification reagent to be used therefor

-

, (2008/06/13)

Purifying reagent for the purification of starting materials to be used in a metal compound catalysed polymerization, containing proton donating reactive contaminants, consisting of a solid product, obtainable by the metallation of a product of a nucleoph

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