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39143-07-2

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39143-07-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39143-07-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,1,4 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 39143-07:
(7*3)+(6*9)+(5*1)+(4*4)+(3*3)+(2*0)+(1*7)=112
112 % 10 = 2
So 39143-07-2 is a valid CAS Registry Number.

39143-07-2SDS

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 4-(1-(4-methyoxyphenyl)methylidene)-3-methyl-1-phenyl-1H-pyrazole-5-one

1.2 Other means of identification

Product number -
Other names 4-(4-Methoxy-benzyliden)-5-methyl-2-phenyl-2,4-dihydro-pyrazol-3-on

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:39143-07-2 SDS

39143-07-2Relevant articles and documents

Enantioselective Synthesis of Spiropyrazolone-Fused Cyclopenta[ c]chromen-4-ones Bearing Five Contiguous Stereocenters via (3+2) Cycloaddition

Khairnar, Pankaj V.,Su, Yin-Hsiang,Edukondalu, Athukuri,Lin, Wenwei

, p. 12326 - 12335 (2021/08/24)

An enantioselective synthesis of spiropyrazolone-fused cyclopenta[c]chromen-4-ones is demonstrated via a (3+2) cycloaddition reaction. The reactions of 3-homoacylcoumarins and α,β-unsaturated pyrazolones in the presence of the cinchona-alkaloid derived hy

A three-component, general and practical route for diastereoselective synthesis of aza-spirocyclic pyrazolonesviaa decarboxylative annulation process

Awasthi, Annapurna,Yadav, Pushpendra,Tiwari, Dharmendra Kumar

, p. 2374 - 2383 (2021/02/16)

An efficient, general, and practical route for highly diastereoselective synthesis of aza-spirocyclic pyrazolones from easily available α-amino acids, aldehydes, and alkylidene pyrazolones by means of a decarboxylative annulation process is reported. This

Enantio- and Diastereoselective Synthesis of β-Aryl-β-pyrazolyl α-Amino Acid Esters via Copper-Catalyzed Reaction of Azomethine Ylides with Benzylidenepyrazolones

Gong, Yan-Chuan,Wang, Yue,Li, Er-Qing,Cui, Hao,Duan, Zheng

supporting information, (2019/02/07)

A fully stereoselective synthesis of unnatural chiral β-aryl-β-pyrazolyl α-amino acid esters via copper-catalyzed addition reactions of azomethine ylides with benzylidenepyrazolones bearing two contiguous stereogenic centers was developed. A 1H-pyrazol-5-ol was introduced by the aromatization of 3H-pyrazol-3-one in the reaction. The transformation operated at room temperature and afforded β-1H-pyrazol-5-ol-α-amino esters in high yields with good to excellent levels of diastereo- and enantioselectivity.

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