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2-chloro-3-(phenylethynyl)pyrazine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1439396-18-5

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1439396-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1439396-18-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,3,9 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1439396-18:
(9*1)+(8*4)+(7*3)+(6*9)+(5*3)+(4*9)+(3*6)+(2*1)+(1*8)=195
195 % 10 = 5
So 1439396-18-5 is a valid CAS Registry Number.

1439396-18-5Relevant academic research and scientific papers

1,3-Dipolar cycloaddition of azinium ylides to alkynyl hetarenes: A synthetic route to indolizine and pyrrolo[2,1-a]isoquinoline based heterobiaryls

Nelina-Nemtseva, Julia I.,Gulevskaya, Anna V.,Pozharskii, Alexander F.,Nguyen, Huong T.L.,Filatova, Ekaterina A.

, p. 2327 - 2335 (2016)

For the first time, π-deficient alkynyl hetarenes were used as dipolarophiles in a 1,3-dipolar cycloaddition reaction with in situ generated azinium ylides. A three-component reaction of pyridine or isoquinoline, ethyl chloroacetate and alkynyl hetarene (

Synthesis and Characterization of Pyridine-, Pyrazine-, and Quinoxaline-Derived [4]Helicenes and S-Shaped Double [4]Helicenes

Gulevskaya, Anna V.,Shvydkova, Ekaterina A.,Tonkoglazova, Daria I.

, p. 5030 - 5043 (2018)

A systematic study of the synthesis and properties of 1-aza-, 4-aza-, and 1,4-diaza[4]helicenes as well as the previously unknown S-shaped double 1,4-diaza[4]helicenes has been reported. The synthetic route to the aza- and diaza[4]helicenes involved an el

Synthesis and Characterization of Azine-[5]Helicene Hybrids

Gulevskaya, Anna V.,Tonkoglazova, Daria I.,Guchunov, Andrey S.,Misharev, Alexander D.

, p. 4879 - 4890 (2019)

Novel azine-helicene hybrids (pyridine-, pyrazine- and quinoxaline-fused along the central ring [5]helicenes) have been prepared in good overall yields through a five-step synthetic sequence. Commercially available 2,3-dihaloazines were used as starting materials. To discern the effect of merging an azine moiety within a helical skeleton, the X-ray structures, UV/Vis absorption spectra, cathodic and anodic electrochemistry of the helicene hybrids were investigated and compared to that of the parent [5]helicene.

Synthesis, crystal structures and properties of carbazolebased [6]helicenes fused with an azine ring

Tonkoglazova, Daria I.,Gulevskaya, Anna V.,Chistyakov, Konstantin A.,Askalepova, Olga I.

, p. 11 - 21 (2021/02/01)

Novel carbazole-based [6]helicenes fused with an azine ring (pyridine, pyrazine or quinoxaline) have been prepared through a fivestep synthetic sequence in good overall yields. Commercially available 2, 3-dihaloazines were used as starting materials. To d

Trifluoroacetic Acid Mediated One-Pot Synthesis of Furo-Fused Quinoxalines/Pyrazines

Mohan Saini, Kapil,Kumar, Sonu,Patel, Monika,Saunthwal, Rakesh K.,Verma, Akhilesh K.

, p. 3707 - 3715 (2017/07/22)

A trifluoroacetic acid promoted step-economical one-pot approach to the synthesis of furo-fused quinoxalines/pyrazines by the reaction of 2,3-dichloroquinoxalines/pyrazines with alkynes is described. The reaction involves a selective in-situ Sonogashira c

Ligand-free Pd-catalyzed C-N cross-coupling/cyclization strategy: An unprecedented access to 1-thienyl pyrroloquinoxalines for the new approach towards apoptosis

Kolli, Sunder Kumar,Nakhi, Ali,Archana, Sivakumar,Saridena, Maneesha,Deora, Girdhar Singh,Yellanki, Swapna,Medisetti, Raghavender,Kulkarni, Pushkar,Ramesh Raju,Pal, Manojit

supporting information, p. 270 - 278 (2014/09/29)

The link between PDE4 and apoptosis prompted us to design and synthesize for the first time a series of novel 1-thienyl pyrroloquinoxalines as potential PDE4 inhibitors/apoptotic agents. A ligand-free Pd-catalyzed C-N cross-coupling/cyclization strategy h

BICYCLIC HETEROARYL DERIVATIVES AS KINASE INHIBITORS

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Paragraph 00446, (2013/06/06)

The present invention provides compounds, including resolved enantiomers, resolved diastereomers, solvates and pharmaceutically acceptable salts thereof, comprising the Formula 1: wherein Het, X, R1 and R2 are as defined herein.

Transition metal free hydrolysis/cyclization strategy in a single pot: Synthesis of fused furo N-heterocycles of pharmacological interest

Nakhi, Ali,Rahman, Md. Shafiqur,Seerapu, Guru Pavan Kumar,Banote, Rakesh Kumar,Kumar, Kummari Lalith,Kulkarni, Pushkar,Haldar, Devyani,Pal, Manojit

supporting information, p. 4930 - 4934 (2013/08/23)

A transition metal free tandem two-step strategy has been developed involving hydrolysis of 2-chloro-3-alkynyl quinoxalines/pyrazines followed by in situ cyclization of the corresponding 2-hydroxy-3-alkynyl intermediates in a single pot leading to fused furo N-heterocycles as potential inhibitors of sirtuins. A representative compound showed promising pharmacological properties in vitro and in vivo.

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