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137595-48-3

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137595-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137595-48-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,9 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137595-48:
(8*1)+(7*3)+(6*7)+(5*5)+(4*9)+(3*5)+(2*4)+(1*8)=163
163 % 10 = 3
So 137595-48-3 is a valid CAS Registry Number.

137595-48-3Downstream Products

137595-48-3Relevant articles and documents

Friedlaender Synthesis of Substituted Quinolines from N-Pivaloylanilines

Ubeda, J. Ignacio,Villacampa, Mercedes,Avendano, Carmen

, p. 1176 - 1180 (1998)

Synthesis of a great variety of quinoline derivatives has been developed by lithiation of N-pivaloylanilines with sec-BuLi, formylation with DMF, and subsequent condensation with active methylene groups of aldehydes or ketones (KHMDS).The pivaloyloxy group is eliminated during one-pot procedure in most cases.The scope of the reaction has been studied, showing that the method is limited by the nature of intermediate compounds. - Keywords: Friedlaender synthesis; pivaloylanilines; quinolines; o-metalation; one-pot synthesis

Synthesis of quinolines via ortho-lithiated N-acylanilines. A modified Friedlander synthesis

Cho,Gong,Muchowski

, p. 7288 - 7291 (2007/10/02)

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