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1245616-70-9

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1245616-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1245616-70-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,5,6,1 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1245616-70:
(9*1)+(8*2)+(7*4)+(6*5)+(5*6)+(4*1)+(3*6)+(2*7)+(1*0)=149
149 % 10 = 9
So 1245616-70-9 is a valid CAS Registry Number.

1245616-70-9Relevant articles and documents

Gold(I)-catalysed cycloisomerisation of 1,6-cyclopropene-enes

Miege, Frederic,Meyer, Christophe,Cossy, Janine

, p. 7810 - 7822 (2012)

The gold(I)-catalysed cycloisomerisation of appropriately substituted 1,6-cyclopropene-enes proceeds through regioselective electrophilic ring opening of the three-membered ring to generate an alkenyl gold carbenoid that achieves the intramolecular cyclopropanation of the remote olefin. This strategy allows straightforward, highly efficient and diastereoselective access to a variety of substituted 3-oxaand 3-azabicycloachtungtrenung[4.1.0]heptanes, as well as to bicycloachtungtrenung[4.1.0]heptan-3-ol derivatives. Since the isopropylidene group in the resulting cycloisomerisation products can be subjected to ozonolysis, 3,3-dimethylcyclopropenes behave as interesting surrogates for a-diazoketones.

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