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1253786-22-9

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1253786-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1253786-22-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,7,8 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1253786-22:
(9*1)+(8*2)+(7*5)+(6*3)+(5*7)+(4*8)+(3*6)+(2*2)+(1*2)=169
169 % 10 = 9
So 1253786-22-9 is a valid CAS Registry Number.

1253786-22-9Downstream Products

1253786-22-9Relevant articles and documents

Synthesis of dihydrobenzisoxazoles by the [3 + 2] cycloaddition of arynes and oxaziridines

Kivrak, Arif,Larock, Richard C.

experimental part, p. 7381 - 7387 (2011/02/22)

Dihydrobenzisoxazoles are readily prepared in good yields by the [3 + 2] cycloaddition of oxaziridines and arynes. The reaction involves an unusual cleavage of the C-O bond of the oxaziridine and tolerates a variety of substituents on the oxaziridine and the o-(trimethylsilyl)aryl triflate to form aryl-, heteroaryl-, alkyl-, and naphthyl-substituted dihydrobenzisoxazoles. The resulting halogen-substituted dihydrobenzisoxazoles are readily elaborated to more complex products using palladium-catalyzed crossing-coupling processes.

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