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1186034-40-1

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1186034-40-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1186034-40-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,6,0,3 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1186034-40:
(9*1)+(8*1)+(7*8)+(6*6)+(5*0)+(4*3)+(3*4)+(2*4)+(1*0)=141
141 % 10 = 1
So 1186034-40-1 is a valid CAS Registry Number.

1186034-40-1Downstream Products

1186034-40-1Relevant articles and documents

Synthesis of 3-arylthieno[2,3-b]-, -[2,3-c]- or -[3,2-c]pyridines utilizing an interrupted pummerer reaction

Kobayashi, Kazuhiro,Suzuki, Teruhiko,Horiuchi, Mai,Shiroyama, Yasuhiko,Konishi, Hisatoshi

, p. 2897 - 2906 (2011/10/18)

An efficient procedure for the synthesis of three types of thienopyridines has been developed. Thus, 3-(1-arylethenyl)-2-(ethylsulfinyl)pyridines, 4-(1-arylethenyl)-3-(ethylsulfinyl)pyridines, and 3-(1-arylethenyl)-4- (ethylsulfinyl)pyridines, which can be easily prepared from the respective aryl chloropyridinyl ketones in a three-step sequence, undergo an interrupted Pummerer reaction on treatment with excess acetic anhydride at temperatures ranging from 100 to 130 C to give 3-arylthieno[2,3-b]pyridines, 3-aryl-thieno[2,3-c]pyridines, and 3-arylthieno[3,2-c]pyridines, respectively. Georg Thieme Verlag Stuttgart - New York.

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