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55163-72-9

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55163-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55163-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,1,6 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 55163-72:
(7*5)+(6*5)+(5*1)+(4*6)+(3*3)+(2*7)+(1*2)=119
119 % 10 = 9
So 55163-72-9 is a valid CAS Registry Number.

55163-72-9Downstream Products

55163-72-9Relevant articles and documents

Synthesis of chiral acetals by asymmetric selenenylations

Uehlin, Lars,Wirth, Thomas

experimental part, p. 1374 - 1385 (2010/03/03)

Asymmetric selenenylations of (E)-ethoxystyrene are described leading to chiral acetals. An efficient synthesis of such compounds including the determination of their absolute configuration is described.

CONVERSION OF ALKYL PHENYL SELENIDES AND SELENOXIDES INTO DIALKYL ETHERS. NUCLEOFUGACITY ENHANCEMENT OF THE PLENYLSELENINYL GROUP BY meta-CHLOROPERBENZOIC ACID IN ALCOHOLS

Tiecco, Marcello,Testaferri, Lorenzo,Tingoli, Marco,Chianelli, Donatella,Bartoli, Donatella

, p. 423 - 428 (2007/10/02)

The recently reported conversion of alkyl phenyl selenides into dialkyl ethers, promoted by MCPBA in alcohols, has been reinvestigated.It is concluded that the reactive intermediate does not derive from the selenones, as reported, but from the selenoxides.It is suggested that MCPBA adds to the selenoxide function to give an intermediate which easily gives rise to solvolysis; thus, the addition of MCPBA greatly enhances the nucleofugacity of the phenylseleninyl group.The synthesis and the reactivity of several 1-phenyl, 2-phenylseleninyl- and 1-phenyl-, 2-phenylselenonyl-ethanes are also described.

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