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141209-95-2

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141209-95-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141209-95-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,2,0 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 141209-95:
(8*1)+(7*4)+(6*1)+(5*2)+(4*0)+(3*9)+(2*9)+(1*5)=102
102 % 10 = 2
So 141209-95-2 is a valid CAS Registry Number.

141209-95-2Downstream Products

141209-95-2Relevant articles and documents

Asymmetric synthesis of non-natural amino acid derivatives: (2R/3S) and (2S/3R) 2-(tert-butoxycarbonylamino)-3-cyclohexyl-3-phenyl propanoic acids

Yang, Rui,Guo, Ya-Fei,Gao, Zhan-Yong,Zhao, Qian,Zhang, Qian-Yang,Lin, Jun

, p. 86 - 89 (2015)

Highly conformationally-constrained novel α-amino acid derivatives ((2R/3S ) and (2S/3R )-2-(tert-butoxycarbonylamino)-3- cyclohexyl-3-phenylpropanoic acids) have been synthesised with high stereoselectivity (> 90% de) and in 36-37% overall yields. In the synthesis, Evans' auxiliary (4(R/S )-4-phenyl-oxzaolidin-2-one) was used to control the stereoselectivity via the key reactions of asymmetric Michael addition, azidation and catalytic hydrogenolysis.

Conjugate addition of aryl nucleophiles to α,β-unsaturated cinnamic acid derivatives containing Evans type chiral auxiliaries

Leitis, Zigmārs,Lūsis, Viesturs

, p. 843 - 851 (2016/09/02)

Cinnamides containing oxazolidin-2-one type auxiliaries have been prepared. A novel pathway to chiral 4-aryl-6-methyl-3,4-dihydrocoumrines via the asymmetric conjugate addition of arylmagnesium bromides to these cinnamides is described.

Doubly diastereoselective conjugate addition of enantiopure lithium amides to enantiopure N-enoyl oxazolidin-2-ones: A mechanistic probe

Davies, Stephen G.,Fletcher, Ai M.,Hermann, Gesine J.,Poce, Giovanna,Roberts, Paul M.,Smith, Andrew D.,Sweet, Miles J.,Thomson, James E.

experimental part, p. 1635 - 1648 (2010/10/18)

The doubly diastereoselective conjugate addition of the antipodes of lithium N-benzyl-N-(α-methylbenzyl)amide to a range of enantiopure N-enoyl oxazolidin-2-ones has been used as a mechanistic probe to determine that the reactive conformation is the anti-s-cis form. The β-amino carbonyl products resulting from these conjugate addition reactions are useful templates for further elaboration into an α,β,α-pseudotripeptide.

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