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(R)-1-phenethyl-3,4-dihydro-1H-isochromene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1338236-57-9

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1338236-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338236-57-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,2,3 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1338236-57:
(9*1)+(8*3)+(7*3)+(6*8)+(5*2)+(4*3)+(3*6)+(2*5)+(1*7)=159
159 % 10 = 9
So 1338236-57-9 is a valid CAS Registry Number.

1338236-57-9Downstream Products

1338236-57-9Relevant articles and documents

Catalytic enantioselective oxidative cross-coupling of benzylic ethers with aldehydes

Meng, Zhilin,Sun, Shutao,Yuan, Huiqing,Lou, Hongxiang,Liu, Lei

supporting information, p. 543 - 547 (2014/01/23)

The first one-pot enantioselective oxidative coupling of cyclic benzylic ethers with aldehydes has been developed. A variety of benzylic ethers were transformed into the corresponding oxygen heterocycles with high enantioselectivity. Mechanistic experiments were conducted to determine the nature of the reaction intermediates. The application of this strategy to coupling reactions with other nucleophiles besides aldehydes was also explored. In one go: The first one-pot enantioselective oxidative coupling of cyclic benzylic ethers with aldehydes has been developed. A variety of benzylic ethers could be functionalized with this method, and the corresponding oxygen heterocycles were obtained with high enantioselectivity.

Copper-catalyzed enantioselective additions to oxocarbenium ions: Alkynylation of isochroman acetals

Maity, Prantik,Srinivas, Harathi D.,Watson, Mary P.

, p. 17142 - 17145 (2011/12/13)

We have developed an enantioselective, copper(I)-catalyzed addition of terminal alkynes to racemic isochroman acetals. This method is one of the first transition-metal-catalyzed approaches to enantioselective additions to prochiral oxocarbenium ions. In this reaction, TMSOTf is used to form the oxocarbenium ion in situ under conditions compatible with simultaneous formation of the chiral copper acetylide. By using a bis(oxazoline) ligand, good yields and enantioselectivities are observed for a variety of enantioenriched 1-alkynyl isochromans.

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