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1581276-22-3

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1581276-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1581276-22-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,2,7 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1581276-22:
(9*1)+(8*5)+(7*8)+(6*1)+(5*2)+(4*7)+(3*6)+(2*2)+(1*2)=173
173 % 10 = 3
So 1581276-22-3 is a valid CAS Registry Number.

1581276-22-3Downstream Products

1581276-22-3Relevant academic research and scientific papers

Alkoxyboration: Ring-closing addition of B-O σ bonds across alkynes

Hirner, Joshua J.,Faizi, Darius J.,Blum, Suzanne A.

, p. 4740 - 4745 (2014/04/17)

For nearly 70 years, the addition of boron-X σ bonds to carbon-carbon multiple bonds has been employed in the preparation of organoboron reagents. However, the significantly higher strength of boron-oxygen bonds has thus far precluded their activation for addition, preventing a direct route to access a potentially valuable class of oxygen-containing organoboron reagents for divergent synthesis. We herein report the realization of an alkoxyboration reaction, the addition of boron-oxygen σ bonds to alkynes. Functionalized O-heterocyclic boronic acid derivatives are produced using this transformation, which is mild and exhibits broad functional group compatibility. Our results demonstrate activation of this boron-O σ bond using a gold catalysis strategy that is fundamentally different from that used previously for other boron addition reactions.

ORGANOBORON COMPOUNDS AND METHODS OF MAKING ORGANOBORON COMPOUNDS

-

, (2015/01/06)

Embodiments of the present disclosure provide for methods of making an organoboron compound, organoboron compounds, and the like.

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