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124337-30-0

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124337-30-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124337-30-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,3,3 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 124337-30:
(8*1)+(7*2)+(6*4)+(5*3)+(4*3)+(3*7)+(2*3)+(1*0)=100
100 % 10 = 0
So 124337-30-0 is a valid CAS Registry Number.

124337-30-0Relevant articles and documents

COORDINATIVELY INDUCED 1,4-DIASTEREOSELECTION IN THE REACTION OF ACYCLIC α,β-ENONES WITH ORGANOCOPPER REAGENTS. A NEW TYPE OF ORGANOCOPPER REAGENT

Corey, E. J.,Hannon, Francis J.,Boaz, Neil W.

, p. 545 - 556 (2007/10/02)

A test has been made of a stereochemical prediction for conjugate addition based on the intermediacy of d,?*-complexes in the reaction of organocopper reagents with α,β-enones.The chiral α,β-enone 7 has been synthesized and subjected to reaction with various methyl cuprate reagents.Under conditions favorable to lithium chelation to the α-alkoxycarbonyl system of 7, conjugate addition to 7 was found to proceed with high (13:1 to 33:1) 1,4-diastereoselectivity, the configuration of the major diastereomer being that predicted by the d,?*-complex model.A new and especially diastereoselective reagent has been generated by the reaction of LiCuMe2 with 0.3 equivalent of water, a possible structure for which is presented.

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