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132639-34-0

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132639-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132639-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132639-34:
(8*1)+(7*3)+(6*2)+(5*6)+(4*3)+(3*9)+(2*3)+(1*4)=120
120 % 10 = 0
So 132639-34-0 is a valid CAS Registry Number.

132639-34-0Relevant articles and documents

First Total Synthesis of 1-O-β-D-Glucopyranosyl-5-deoxyadenophorine and Its Aglycon Congener: Determination of the Absolute Configuration

Felpin, Francois-Xavier,Boubekeur, Kamal,Lebreton, Jacques

, p. 1497 - 1503 (2007/10/03)

The first total synthesis of the potent glycosidase inhibitors 1-O-β-D-glucopyranosyl-5-deoxyadenophorine and its aglycon congener is described in respectively 13 steps (9% overall yield) and 9 steps (29% overall yield) from (R)-Garner aldehyde. The synthesis takes advantage of several key reactions including a diastereoselective allylation of a chiral imine, a stereoselective epoxidation, and a glycoside coupling. In addition this study established unambiguously the absolute configuration of the natural products.

Efficient access to chiral trans-2,6-dialkyl-1,2,5,6-tetrahydropyridines via allylation of chiral imines and ring-closing metathesis

Felpin, Fran?ois-Xavier,Lebreton, Jacques

, p. 527 - 530 (2007/10/03)

Enantiomerically pure trans-2,6-dialkyl-1,2,5,6-tetrahydropyridines are synthesized in five steps from Garner's aldehyde in 37-44% overall yield. This strategy is based on the allylation of chiral iminoalcohols formed in situ followed by a ring-closing metathesis.

Synthesis of asymmetric (E)-α-(2-phenylcyclopropyl)glycines

De Frutos,Fernandez,Fernandez-Alvarez,Bernabe

, p. 541 - 542 (2007/10/02)

An asymmetric synthesis of (E)-α-(2-phenylcyclopropyl)glycines is reported. The key step is the dibromocyclopropanation of tert-Butyl (E,4R) or (E,4S)-2,2-dimethyl-4-(2'-phenylvinyl)-3-oxazolidinecarboxylates, easily prepared from L or D-serine, respectiv

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