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1187923-23-4

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1187923-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1187923-23-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,9,2 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1187923-23:
(9*1)+(8*1)+(7*8)+(6*7)+(5*9)+(4*2)+(3*3)+(2*2)+(1*3)=184
184 % 10 = 4
So 1187923-23-4 is a valid CAS Registry Number.

1187923-23-4Downstream Products

1187923-23-4Relevant articles and documents

Direct synthesis of ethers from aldehydes and ketones. One-pot reductive etherification of benzaldehydes, alkyl aryl ketones, and benzophenones

Mochalov,Fedotov,Trofimova,Zefirov

, p. 503 - 512 (2016/06/13)

Benzyl alcohols formed by the reduction of benzaldehydes, alkyl aryl ketones, and benzophenones with sodium tetrahydridoborate in alcohols undergo in situ etherification with the solvent in the presence of a catalytic amount of HCl. Thus the process may be regarded as one-pot transformation of carbonyl compounds into the corresponding benzyl ethers. The yields of ethers depend on the substituent nature in the aromatic fragment of the initial carbonyl compound and on the alcohol used as reduction medium.

Bifunctional copper catalysts for an atom efficient ether synthesis

Zaccheria, Federica,Psaro, Rinaldo,Ravasio, Nicoletta

experimental part, p. 5221 - 5224 (2009/12/06)

A direct etherification of aromatic ketones and aliphatic alcohols into the corresponding asymmetrical ethers by the use of a bifunctional heterogeneous copper catalyst is described. The reaction protocol reveals to be versatile and convenient respect to the traditional ether synthesis for both environmental and practical concerns.

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