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3-Penten-2-one,1-(1-cyclopenten-1-yl)-(9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

654643-31-9

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654643-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 654643-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,4,6,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 654643-31:
(8*6)+(7*5)+(6*4)+(5*6)+(4*4)+(3*3)+(2*3)+(1*1)=169
169 % 10 = 9
So 654643-31-9 is a valid CAS Registry Number.

654643-31-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-(cyclopenten-1-yl)pent-3-en-2-one

1.2 Other means of identification

Product number -
Other names 3-Penten-2-one,1-(1-cyclopenten-1-yl)

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:654643-31-9 SDS

654643-31-9Downstream Products

654643-31-9Relevant academic research and scientific papers

A mild isomerization reaction for β,γ-unsaturated ketone to α,β-unsaturated ketone

Lee, Adam Shih-Yuan,Lin, Mei-Chun,Wang, Shu-Huei,Lin, Li-Shin

, p. 371 - 376 (2015/02/05)

A series of β,γ-unsaturated ketones were isomerized to their corresponding α,β-unsaturated ketones by the introduction of DABCO in iPrOH at room temperature. The endo-cyclic double bond (β,γ-position) on ketone was rearranged to exo-cyclic double bond (α,β-position) under the reaction conditions.

Synthesis of β-Amino and β-Methoxy Ketones by Lewis Acids Promoted β-Substitution Reactions of βγ,-Unsaturated Ketones

Lee, Adam Shih-Yuan,Wang, Shu-Huei,Chang, Yu-Ting,Chu, Shu-Fang

, p. 2359 - 2363 (2007/10/03)

A reaction mixture of β,γ-unsaturated ketone and BF 3·OEt2 in CH3OH was stirred at room temperature and β-methoxy ketone was produced in high yield. The β-amino ketone was obtained as the major product from a reaction mixture of β,γ-unsaturated ketone, AlCl3 and Ts-NH2 in CH2Cl2 at room temperature. This Lewis acid promoted β-substitution reaction mechanism was proposed as that the process occurred via in situ isomerization of β,γ-unsaturated ketone to α,β-unsaturated ketone followed by the 1,4-addition reaction.

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