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1494-33-3

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1494-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1494-33-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,9 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1494-33:
(6*1)+(5*4)+(4*9)+(3*4)+(2*3)+(1*3)=83
83 % 10 = 3
So 1494-33-3 is a valid CAS Registry Number.

1494-33-3Relevant articles and documents

Synthesis of benzyl thioether derivatives via N-heterocyclic carbene palladium(II)-catalyzed cross coupling of benzylammonium salts with thiophenols

Wang, Tao,Guo, Jiarui,Xu, Yongli,Wang, Xiaobo,Wang, Yan,Feng, Dandan,Liu, Lantao

, (2021/12/01)

A new route to benzyl thioether derivatives has been developed via the N-heterocyclic carbene palladium(II)-catalyzed cross coupling of benzylammonium salts with thiophenols. Under the optimal conditions, different benzylammonium salts could be well toler

Rhodium-Catalyzed C-H/C-H Cross Coupling of Benzylthioethers or Benzylamines with Thiophenes Enabled by Flexible Directing Groups

Yang, Shiping,Cheng, Rui,Zhao, Tingxing,Luo, Anping,Lan, Jingbo,You, Jingsong

supporting information, p. 5086 - 5090 (2019/07/03)

Reported herein is an efficient synthetic protocol to ortho-functionalized 2-aryl thiophenes via Rh(III)-catalyzed C-H/C-H cross coupling of benzylthioethers or benzylamines with thiophenes. Both ortho- and meta-substituted benzylthioethers give monoheteroarylated products, while ortho-unhindered substrates mainly provide diheteroarylated benzylthioethers. The C-H/C-H cross coupling of benzylamines with thiophenes exclusively generates diheteroarylated benzaldehydes. Mechanistic investigation discloses a three-step tandem process involving the ortho-C-H diheteroarylation of benzylamine, the oxidation of benzylamine to imine, and the hydrolysis of imine to aldehyde.

Aryl alkyl, aryl aryl thioether compound and its synthesis method

-

Paragraph 0095-0098, (2017/08/16)

The invention discloses a synthesis method of an aryl-alkyl and aryl-aryl thioether compound represented by a formula (III). According to the synthesis method, aryl tetrafluoroboric acid diazonium salt is taken as a reaction raw material in a reaction solvent, aryl and alkyl thiosulfate is taken as a sulfurizing agent, and the materials react under the catalysis action of visible light and a photosensitive agent to obtain the aryl-alkyl and aryl-aryl thioether compound. According to the synthesis method, the raw materials are easy to obtain and are cheap, the reaction operation is simple, the reaction condition is mild and environment-friendly, the yield is higher, the functional group tolerance is excellent, later modification of drugs is successfully realized, and an efficient C-S bond construction method is provided for medicinal chemistry and biological orthogonal chemistry research.

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