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(3aR,4R,7aS,αR)-4-Methyl-1-(α-methylbenzyl)-3a,4,7,7a-tetrahydropyrano[4,3-d]oxazole-2,6(1H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

257907-98-5

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257907-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257907-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,0 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 257907-98:
(8*2)+(7*5)+(6*7)+(5*9)+(4*0)+(3*7)+(2*9)+(1*8)=185
185 % 10 = 5
So 257907-98-5 is a valid CAS Registry Number.

257907-98-5Downstream Products

257907-98-5Relevant academic research and scientific papers

Syntheses of derivatives of L-daunosamine and its C-3 epimer employing as the key step the asymmetric conjugate addition of a homochiral lithium amide to tert-butyl (E,E)-hexa-2,4-dienoate

Davies, Stephen G.,Smyth, G. Darren,Chippindale, Ann M.

, p. 3089 - 3104 (2007/10/03)

The highly diastereoselective asymmetric conjugate addition of lithium (R)-N-benzyl-α-methylbenzylamide to methyl or tert-butyl (E,E)-hexa-2,4-dienoate, followed by osmium tetroxide-catalysed dihydroxylation of the resulting adducts, provides a concise ro

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