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66050-00-8

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66050-00-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66050-00-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,0,5 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66050-00:
(7*6)+(6*6)+(5*0)+(4*5)+(3*0)+(2*0)+(1*0)=98
98 % 10 = 8
So 66050-00-8 is a valid CAS Registry Number.

66050-00-8Relevant articles and documents

Chiral bases as useful probes of lithium amide reactivity

Prestly, Mark R.,Simpkins, Nigel S.

, p. 12068 - 12071 (2012)

Experiments involving competition between chiral and achiral lithium amides provide a qualitative impression of the kinetics of different amide motifs in enolization reactions. The level of enantioselectivity was not diminished by the inclusion of lithium

Titanium- And Lewis acid-mediated cyclopropanation of imides

Bertus, Philippe,Szymoniak, Jan

, p. 659 - 662 (2008/02/05)

We report a straightforward synthesis of 1-azaspirocyclopropane lactams from imides. Following the described procedure, polycyclic nitrogen heterocycles containing a cyclopropane unit could be obtained from unsaturated imides.

Oxazaborolidine catalysed enantioselective reduction of cyclic meso-imides

Ostendorf, Martin,Romagnoli, Romeo,Pereiro, Isabel Cabeza,Roos, Eric C.,Moolenaar, Marinus J.,Speckamp, W. Nico,Hiemstra, Henk

, p. 1773 - 1789 (2007/10/03)

Full details of the enantioselective reduction of cyclic meso-imides catalysed by an enantiopure oxazaborolidine derived from (S)-α,α-diphenylprolinol are reported. Treatment of the imides with borane in the presence of the catalyst led to a mixture of cis- and trans-hydroxylactams and, after subsequent ethanolysis, to the corresponding diastereomerically pure trans-ethoxylactams. The enantiomeric excesses were shown to be 68-94% by HPLC-determination. One example, in which the ethoxylactam was converted into the benzenesulfonyllactam, could be crystallized to >99% enantiomeric purity.

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