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64871-53-0

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64871-53-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64871-53-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,7 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64871-53:
(7*6)+(6*4)+(5*8)+(4*7)+(3*1)+(2*5)+(1*3)=150
150 % 10 = 0
So 64871-53-0 is a valid CAS Registry Number.

64871-53-0Relevant articles and documents

Enantioselective synthesis of N-heterocycles via intramolecular Pd(0)-catalysed allylic amination

Olszewska, Beata,Kryczka, Bogus?aw,Zawisza, Anna

, p. 9551 - 9556 (2013/10/22)

An efficient and stereoselective synthesis of pyrrolidine-, piperidine-, and azepane-type N-heterocycles is described by the intramolecular Pd(0)-catalysed cyclisation of amino allylic carbonates. The use of chiral ligands gave the corresponding heterocyclic derivatives having er values that were from moderate to good.

Gold(I)-catalyzed intramolecular amination of allylic alcohols with alkylamines

Mukherjee, Paramita,Widenhoefer, Ross A.

supporting information; experimental part, p. 1334 - 1337 (2011/05/15)

A 1:1 mixture of (1)AuCl [1 = P(t-Bu)2o-biphenyl] and AgSbF 6 catalyzes the intramolecular amination of allylic alcohols with alkylamines to form substituted pyrrolidine and piperidine derivatives. Gold(I)-catalyzed cyclization of (R,Z)-8-(N-benzylamino)-3-octen-2-ol (96% ee, 95% de) led to isolation of (R,E)-1-benzyl-2-(1-propenyl)piperidine in 99% yield with 96% ee, consistent with the net syn addition of the amine relative to the departing hydroxyl group.

Synthesis of functionalised azecine and azonine derivatives via an enolate assisted aza Claisen rearrangement

Bremner, John B.,Perkins, David F.

, p. 2659 - 2665 (2007/10/03)

This paper describes the synthesis of functionalised azecine and azonine derivatives incorporating the adrenaline motif. In a key step, an enolate assisted aza Claisen rearrangement was employed to interconvert from 6- and 5-membered heterocycles to their corresponding 10- and 9-membered lactams.

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