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1242160-39-9

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1242160-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1242160-39-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,1,6 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1242160-39:
(9*1)+(8*2)+(7*4)+(6*2)+(5*1)+(4*6)+(3*0)+(2*3)+(1*9)=109
109 % 10 = 9
So 1242160-39-9 is a valid CAS Registry Number.

1242160-39-9Relevant articles and documents

Cinchona-based squaramide-catalysed cascade aza-Michael-Michael addition: Enantioselective construction of functionalized spirooxindole tetrahydroquinolines

Yang, Wen,Du, Da-Ming

supporting information, p. 8842 - 8844 (2013/09/24)

An efficient enantioselective cascade aza-Michael-Michael addition reaction catalysed by a chiral bifunctional tertiary amine-squaramide catalyst has been developed. This cascade reaction proceeded well under mild conditions, furnishing highly functionalized spirooxindole tetrahydroquinolines with three contiguous stereocenters in excellent yields with excellent diastereoselectivities (>25:1 dr) and high enantioselectivities (up to 94% ee). The Royal Society of Chemistry 2013.

Selective reduction of nitroarenes by a Hantzsch 1,4-dihydropyridine: A facile and efficient approach to substituted quinolines

Xing, Rui-Guang,Li, Ya-Nan,Liu, Qiang,Han, Yi-Feng,Wei, Xia,Li, Jing,Zhou, Bo

experimental part, p. 2066 - 2072 (2011/08/05)

An efficient reductive cyclization of o-nitrocinnamoyl compounds was achieved by employing a Hantzsch 1,4-dihydropyridine ester as a biomimetic reducing agent in the presence of catalytic palladium on carbon. This approach was successfully applied to the synthesis of substituted quinolines. Georg Thieme Verlag Stuttgart ? New York.

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