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616227-10-2

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616227-10-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 616227-10-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,6,2,2 and 7 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 616227-10:
(8*6)+(7*1)+(6*6)+(5*2)+(4*2)+(3*7)+(2*1)+(1*0)=132
132 % 10 = 2
So 616227-10-2 is a valid CAS Registry Number.

616227-10-2Relevant articles and documents

Design of chiral boronate-substituted acrylanilides. Self-activation and boron-transmitted 1,8-stereoinduction in [4+2] cycloaddition

Kennedy, Jason W.J.,Hall, Dennis G.

, p. 263 - 270 (2007/10/03)

The [4+2] cycloaddition of ortho-boronoanilide dienophile 4 with cyclopentadiene was found to proceed faster than both its para isomer 8 and the unsubstituted derivative 6, thereby confirming that self-activation by internal coordination is operative in the case of 4. Chiral boronic esters derivatives 9-13 provided a small level of remote 1,8-stereoinduction transmitted through a putative tetrahedral stereogenic boronate complex. These results show that dialkoxyboronic esters can operate as weak, internal Lewis acids and activate carbonyl-containing functionalities in cycloaddition reactions.

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