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33026-37-8

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33026-37-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33026-37-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,0,2 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 33026-37:
(7*3)+(6*3)+(5*0)+(4*2)+(3*6)+(2*3)+(1*7)=78
78 % 10 = 8
So 33026-37-8 is a valid CAS Registry Number.

33026-37-8Relevant articles and documents

A Pd(II)-Functionalized Covalent Organic Framework for Catalytic Conjugate Additions of Arylboronic Acids to β,β-Disubstituted Enones

Heintz, Patrick M.,Schumacher, Brian P.,Chen, Minda,Huang, Wenyu,Stanley, Levi M.

, p. 4286 - 4290 (2019/08/16)

A palladium(II)-functionalized covalent organic framework (Pd@TpBpy COF) constructed from 1,3,5-triformylphloroglucinol (Tp) and [2,2′-bipyridine]-5,5′-diamine (Bpy) is reported as a recyclable catalyst for conjugate additions in aqueous media. Additions

Synthesis of Cyclohexanones through a Catalytic Cationic Cyclization of Alkynols or Enynes

Alonso, Pedro,Fontaneda, Raquel,Pardo, Pilar,Fa?anás, Francisco J.,Rodríguez, Félix

supporting information, p. 1659 - 1662 (2018/03/23)

A novel procedure for the synthesis of cyclohexanones from alkynol or enyne derivatives through a cationic cyclization has been developed. The key points to obtain the six-membered ring derivatives are the use of starting materials containing a terminal alkyne, the use of tetrafluoroboric acid as a promoter of the cationic cyclization, and the appropriate selection of 1,1,1,3,3,3-hexafluoropropan-2-ol (HFIP) as solvent. This strategy can be extended to the biomimetic cationic cyclization of several terpene-derived polyenynes.

Palladium complexes with chiral imidazole ligands as potential catalysts for asymmetric C[sbnd]C coupling reactions

Zawartka, Wojciech,Gniewek, Andrzej,Trzeciak, Anna M.

, p. 595 - 599 (2016/11/30)

Two palladium complexes of the type [Pd(im)2Cl2] containing chiral imidazole ligands (im?=?1-bornyloxymethylene imidazole, 1-fenchyloxymethylyne imidazole) were synthesized and structurally characterized. The square planar structure of one of the complexes was confirmed by the X-ray analysis. The new palladium complexes were tested as catalysts in various C[sbnd]C bond forming reactions, namely Suzuki–Miyaura, carbonylative Suzuki–Miyaura, asymmetric Heck-type coupling reactions and asymmetric conjugate addition of phenylboronic acid to heterocyclic acceptors. In all the reactions the cross-coupling products were obtained with high yield and selectivity under mild conditions. In case of coupling of 2,3-dihydrofuran with phenylboronic acid ee value ca. 10 was observed.

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