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1433204-54-6

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1433204-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1433204-54-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,3,2,0 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1433204-54:
(9*1)+(8*4)+(7*3)+(6*3)+(5*2)+(4*0)+(3*4)+(2*5)+(1*4)=116
116 % 10 = 6
So 1433204-54-6 is a valid CAS Registry Number.

1433204-54-6Upstream product

1433204-54-6Downstream Products

1433204-54-6Relevant articles and documents

Synthesis of alkaloids by stevens rearrangement of nitrile-stabilized ammonium ylides: (±)-laudanosine, (±)-laudanidine, (±)-armepavine, (±)-7-methoxycryptopleurine, and (±)-xylopinine

Orejarena Pacheco, Julio Cesar,Lahm, Günther,Opatz, Till

, p. 4985 - 4992 (2013/06/27)

The Stevens rearrangement of nitrile-stabilized ammonium ylides in conjunction with the reductive removal of the nitrile function permits the facile construction of α-branched amines from α-aminonitriles. We employed this reaction sequence for the preparation of (±)-laudanosine, (±)-laudanidine and (±)-armepavine, (±)-7- methoxycryptopleurine, and (±)-xylopinine from two closely related and readily accessible bicyclic α-aminonitriles. The final products were obtained in high to almost quantitative yields (71-98%) from the quaternary ammonium salts obtained by N-alkylation of these starting materials.

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