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24785-42-0

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24785-42-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 24785-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,7,8 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 24785-42:
(7*2)+(6*4)+(5*7)+(4*8)+(3*5)+(2*4)+(1*2)=130
130 % 10 = 0
So 24785-42-0 is a valid CAS Registry Number.

24785-42-0Relevant articles and documents

Nickel-Mediated Cross-Coupling of Unactivated Neopentyl Iodides with Organozincs

Park, Kwangyong,Yuan, Kaixu,Scott, William J.

, p. 4866 - 4870 (2007/10/02)

(dppf)NiCl2 catalyzes the cross-coupling of unactivated primary neopentyl iodides with diorganozinc reagents.The zinc nucleophiles are formed by the treatment of ZnCl2*dioxane with 2 mol equiv of a Grignard reagent in an etheral solvent.The cross-coupling works optimally for diorganozincs formed from aryl chlorides or CH3MgCl.Use of aryl bromides can cause reduction and/or reductive dimerization of the electrophile.The analogous reaction with (CH3)2CuMgCl in either the presence or the absence of Group 10 metal catalysts failed to afford reasonable yields of cross-coupled products.The diorganozinc methodology overcomes many of the side reactions observed with the (dppf)NiCl2-mediated cross-coupling of Grignard reagents.

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