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104225-11-8

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104225-11-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104225-11-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,2,2 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104225-11:
(8*1)+(7*0)+(6*4)+(5*2)+(4*2)+(3*5)+(2*1)+(1*1)=68
68 % 10 = 8
So 104225-11-8 is a valid CAS Registry Number.

104225-11-8Downstream Products

104225-11-8Relevant articles and documents

The 1-Aza-Cope Rearrangement

Wu, Pei-Lin,Chu, Min,Fowler, Frank W.

, p. 963 - 972 (2007/10/02)

The 1-aza-Cope rearrangement of azavinylcyclohexene derivatives were investigated.It was observed that an N-acyl substituent on the 1-aza 1,5-diene provides a sufficient driving force for this normally contrathermodynamic process.Although simple derivatives have high activation energies proceeding in relative low overall yield, a methoxy substituent at C-4 of the aza diene as well as its incorporation into strained bicyclic ring systems facilitates the 1-aza-Cope rearrangement.Because the aza diene precursors are readily available by using the Diels-Alder reaction with acrolein derivatives, this process has synthetic potential for the preparation of nitrogen heterocycles.This scheme is illustrated with the preparation of a hydrolulolidine providing a formal total synthesis of (+/-)-aspidospermine.

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