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129720-85-0

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129720-85-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129720-85-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,2 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 129720-85:
(8*1)+(7*2)+(6*9)+(5*7)+(4*2)+(3*0)+(2*8)+(1*5)=140
140 % 10 = 0
So 129720-85-0 is a valid CAS Registry Number.

129720-85-0Relevant articles and documents

Simple and facile l-prolinamides derived from achiral cycloalkylamines as organocatalysts for the highly efficient large-scale asymmetric direct aldol reactions

Xu, Jiang-Wei,Fu, Xiang-Kai,Hu, Xiao-Yan,Wu, Chuan-Long

, p. 1156 - 1163 (2011)

A series of N-cycloalkylprolinamides have been designed and synthesized from achiral cycloalkylamines in a facile manner. They promoted high stereoselectivity in the cross-aldol reaction. N-cyclopropylprolinamide performed best with a smallest carbocyclic

The development of new amine-amide ligands for application in Cu(II)-catalyzed enantioselective Henry reactions

Ao, Chunyan,Men, Jian,Wang, Yang,Shao, Tao,Huang, Yuanyuan,Huo, Junji,Gao, Guowei

, p. 589 - 595 (2016/07/06)

A new type of chiral tertiary amine ligand was designed and derived from l-proline and (R)-BINOL. These new chiral ligands chelated with Cu(II) showed highly catalytic efficiency in enantioselective Henry reactions. Excellent yields (up to 99%) and high enantioselectivities (up to 96% ee) were achieved for aromatic, hetero-aromatic and aliphatic aldehyde substrates, without an additional base additive or the need for air or moisture exclusion.

Asymmetric intramolecular aldol reaction mediated by (S)-N-substituted-N- (2-pyrrolidinylmethyl)amine to prepare Wieland-Miescher ketone

Akahane, Yuichi,Inomata, Kohei,Endo, Yasuyuki

experimental part, p. 1727 - 1737 (2011/06/17)

New or known N-substituted-N-(2-pyrrolidinylmethyl)amine derivatives bearing a variety of alkyl and aryl substituents were easily prepared from N-Boc-proline or N-Boc-N-(2-pyrrolidinylmethyl)amine. The enantioselectivity of the intramolecular asymmetric aldol reaction mediated by a combination of the amine derivative and TFA to prepare Wieland-Miescher ketone was examined. During the examination, optimal amount of TFA in the reaction was identified. The Japan Institute of Heterocyclic Chemistry.

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