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1-Propanone, 3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methyl-1-phenyl-, (2R)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

657394-58-6

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657394-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 657394-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,7,3,9 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 657394-58:
(8*6)+(7*5)+(6*7)+(5*3)+(4*9)+(3*4)+(2*5)+(1*8)=206
206 % 10 = 6
So 657394-58-6 is a valid CAS Registry Number.

657394-58-6Relevant academic research and scientific papers

Rhodium-catalyzed asymmetric formal olefination or cycloaddition: 1,3-dicarbonyl compounds reacting with 1,6-diynes or 1,6-enynes

Suda, Takeshi,Noguchi, Keiichi,Tanaka, Ken

, p. 4475 - 4479 (2011/06/25)

A cationic rhodium(I) complex catalyzes the title reaction of 1,6-diynes through a [2+2+2] cycloaddition and subsequent electrocyclic ring opening (see scheme; cod=1,5-cyclooctadiene, H8-binap=2,2′- bis(diphenylphosphino)-5,5′,6,6′,7,7′,8,8′-octahydro-1, 1′-binaphthyl). The asymmetric intramolecular [2+2+2] cycloaddition of 1,3-dicarbonyl compounds with 1,6-enynes was also accomplished. Copyright

Lewis acid-catalyzed asymmetric hydroxymethylation of silicon enolates in aqueous media

Manabe, Kei,Ishikawa, Shunpei,Hamada, Tomoaki,Kobayashi, Shu

, p. 10439 - 10444 (2007/10/03)

Asymmetric hydroxymethylation of silicon enolates with formaldehyde in aqueous media has been achieved using praseodymium triflate and a chiral crown ether. Formaldehyde aqueous solution can be directly used for the reactions, and a water/THF mixture was found to be the best solvent system. This is the first example of catalytic asymmetric hydroxymethylation of silicon enolates.

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