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diphenylsulfonium 2-oxo-2-(prop-2-enyloxy)ethylide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

240404-74-4

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240404-74-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 240404-74-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,0,4,0 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 240404-74:
(8*2)+(7*4)+(6*0)+(5*4)+(4*0)+(3*4)+(2*7)+(1*4)=94
94 % 10 = 4
So 240404-74-4 is a valid CAS Registry Number.

240404-74-4Upstream product

240404-74-4Downstream Products

240404-74-4Relevant articles and documents

Transition-metal-catalyzed carbenoid reactions of sulfonium ylides

Mueller, Paul,Fernandez, Daniel,Nury, Patrice,Rossier, Jean-Claude

, p. 935 - 945 (1999)

Olefins undergo cyclopropanation with diphenylsulfonium (ethoxycarbonyl)methylide (=diphenyl-sulfonium 2-ethoxy-2-oxoethylide; 3a) in the presence of chiral Cu(I) or Rh(II) catalysis, trans/cis Ratios and ee's of the cyclopropanes 6 obtained with this ylide in the presence of a chiral Cu(I) catalyst 7 are identical with those obtained with ethyl diazoacetate (4). In the case of catalysis with Rh(II), the trans/cis ratios of the cyclopropanes as well as the enantioselectivity change slightly upon going from the ylide 3a to diazoacetate 4.

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