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21286-60-2

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21286-60-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21286-60-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,8 and 6 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21286-60:
(7*2)+(6*1)+(5*2)+(4*8)+(3*6)+(2*6)+(1*0)=92
92 % 10 = 2
So 21286-60-2 is a valid CAS Registry Number.

21286-60-2Relevant articles and documents

Migratory hydroamination: A facile enantioselective synthesis of benzomorphans

Trost, Barry M.,Tang, Weiping

, p. 8744 - 8745 (2007/10/03)

We describe a highly efficient, general strategy for the enantioselective synthesis of benzomorphans (45-46% overall yield from commercially available material). The new synthesis demonstrates the effectiveness of an unprecedented diastereoselective cycloisomerization via migratory hydroamination and the power of palladium-catalyzed asymmetric allylic alkylation (AAA) of simple ketone enolates in the context of complex synthesis. The strategy outlined here for the enantioselective synthesis of three contiguous stereogenic centers and the novel cycloisomerization should have many applications in alkaloid synthesis. Copyright

An improved resolution of (±)-cis-N-normetazocine

Brine,Berrang,Hayes,Carroll

, p. 2139 - 2143 (2007/10/02)

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