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53573-33-4

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53573-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53573-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,5,7 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 53573-33:
(7*5)+(6*3)+(5*5)+(4*7)+(3*3)+(2*3)+(1*3)=124
124 % 10 = 4
So 53573-33-4 is a valid CAS Registry Number.

53573-33-4Relevant articles and documents

Palladium-Catalyzed Thiocarbonylations with Triisopropylsilyl Thioethers

Hosoya, Yosuke,Mizoguchi, Kota,Yasukochi, Honoka,Nakada, Masahisa

, p. 495 - 501 (2022/02/16)

We have developed a palladium-catalyzed thiocarbonylation through the reaction of a σ-alkyl palladium intermediate with carbon monoxide and a triisopropylsilyl (TIPS) thioether. The use of CsF, (IPr)Pd(allyl)Cl [IPr =1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene], CO, and a TIPS thioether in THF are key to obtaining alkyl and aryl thioesters in high yields. The yield of the palladium-catalyzed thiocarbonylation depended on the structure of the substrate; indoline-2-one derivatives were formed faster than indoline derivatives. The reactions of benzoyl and hydrocinnamoyl fluorides with TIPSSPh and CsF also gave the corresponding thioesters.

Palladium-catalyzed thiocarbonylation of alkenes toward linear thioesters

Ai, Han-Jun,Zhao, Fengqian,Geng, Hui-Qing,Wu, Xiao-Feng

, p. 3614 - 3619 (2021/04/07)

Thiocarbonylation of alkenes offers an ideal procedure for the synthesis of thioesters. However, thiocarbonylation of alkenes, especially styrenes, to produce valuable linear thioesters has remained a challenge. In this Letter, a general palladium-catalyz

Comprehensive Study of the Organic-Solvent-Free CDI-Mediated Acylation of Various Nucleophiles by Mechanochemistry

Mtro, Thomas-Xavier,Bonnamour, Julien,Reidon, Thomas,Duprez, Anthony,Sarpoulet, Jordi,Martinez, Jean,Lamaty, Frdric

supporting information, p. 12787 - 12796 (2015/09/01)

Acylation reactions are ubiquitous in the synthesis of natural products and biologically active compounds. Unfortunately, these reactions often require the use of large quantities of volatile and/or toxic solvents, either for the reaction, purification or isolation of the products. Herein we describe and discuss the possibility of completely eliminating the use of organic solvents for the synthesis, purification and isolation of products resulting from the acylation of amines and other nucleophiles. Thus, utilisation of N,N′-carbonyldiimidazole (CDI) allows efficient coupling between carboxylic acids and various nucleophiles under solvent-free mechanical agitation, and water-assisted grinding enables both the purification and isolation of pure products. Critical parameters such as the physical state and water solubility of the products, milling material, type of agitation (vibratory or planetary) as well as contamination from wear are analysed and discussed. In addition, original organic-solvent-free conditions are proposed to overcome the limitations of this approach. The calculations of various green metrics are included, highlighting the particularly low environmental impact of this strategy.

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