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1609171-52-9

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1609171-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609171-52-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,1,7 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1609171-52:
(9*1)+(8*6)+(7*0)+(6*9)+(5*1)+(4*7)+(3*1)+(2*5)+(1*2)=159
159 % 10 = 9
So 1609171-52-9 is a valid CAS Registry Number.

1609171-52-9Downstream Products

1609171-52-9Relevant articles and documents

Synthesis of sterically congested triarylamines by palladium-catalyzed amination

Riedmueller, Stefan,Kaufhold, Oliver,Spreitzer, Hubert,Nachtsheim, Boris J.

supporting information, p. 1391 - 1394 (2014/03/21)

An efficient protocol for the palladium-catalyzed synthesis of sterically congested triarylamines from commercially available 1-chloro- or 1-bromonaphthalenes and diarylamines is described. The application of alkyllithium reagents as strong bases and a combination of Pd(OAc)2 and SPhos (2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl) plays a crucial role in the success of this otherwise difficult to achieve C-N coupling reaction. A variety of secondary aromatic amines with versatile steric and electronic properties can be successfully used in this transformation to give the desired triarylamines in up to 99 % yield. The obtained products are important structural motifs in hole-transport materials for organic light-emitting diode applications. A variety of secondary aromatic amines are coupled with 1-halonaphthalenes to give sterically highly congested triarylamines in up to 99 % yield. The key to the success of this transformation is prior deprotonation of the amine with strong bases such as n-hexyllithium. Copyright

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