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2-Pentanone, 4-[4-methyl-2-[(trimethylsilyl)ethynyl]phenyl]-, (4S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

652994-22-4

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652994-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 652994-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,2,9,9 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 652994-22:
(8*6)+(7*5)+(6*2)+(5*9)+(4*9)+(3*4)+(2*2)+(1*2)=194
194 % 10 = 4
So 652994-22-4 is a valid CAS Registry Number.

652994-22-4Relevant academic research and scientific papers

Enantioselective Total Synthesis of Erogorgiaene: Applications of Asymmetric Cu-Catalyzed Conjugate Additions of Alkylzincs to Acyclic Enones

Cesati III, Richard R.,De Armas, Judith,Hoveyda, Amir H.

, p. 96 - 101 (2007/10/03)

The first enantioselective synthesis of erogorgiaene (1), an inhibitor of mycobacterium tuberculosis, is disclosed. The total synthesis highlights the utility of asymmetric conjugate additions (ACA) of alkylzincs to acyclic α,β-unsaturated ketones catalyzed by peptidic phosphine ligands and (CuOTf)2·C6H6. Moreover, several critical attributes of this catalytic C-C bond-forming reaction are illustrated in the context of the total synthesis; these include the significance of various structural features of the amino acid-based chiral ligands and the chiral ligand's effectiveness in reactions involving achiral and chiral substrates. In addition, the total synthesis showcases some of the special properties of nonphosphine Ru complex 3 as a highly effective catalyst for olefin cross-metathesis.

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