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67008-23-5

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67008-23-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67008-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,0,0 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67008-23:
(7*6)+(6*7)+(5*0)+(4*0)+(3*8)+(2*2)+(1*3)=115
115 % 10 = 5
So 67008-23-5 is a valid CAS Registry Number.

67008-23-5Relevant articles and documents

Decarboxylative Conjunctive Cross-coupling of Vinyl Boronic Esters using Metallaphotoredox Catalysis

Aggarwal, Varinder K.,Duong, Vincent K.,Mega, Riccardo S.,Noble, Adam

, p. 4375 - 4379 (2020/02/11)

The synthesis of complex alkyl boronic esters through conjunctive cross-coupling of vinyl boronic esters with carboxylic acids and aryl iodides is described. The reaction proceeds under mild metallaphotoredox conditions and involves an unprecedented decarboxylative radical addition/cross-coupling cascade of vinyl boronic esters. Excellent functional-group tolerance is displayed, and application of a range of carboxylic acids, including secondary α-amino acids, and aryl iodides provides efficient access to highly functionalized alkyl boronic esters. The decarboxylative conjunctive cross-coupling was also applied to the synthesis of sedum alkaloids.

Stereoselective total synthesis of the piperidine alkaloids, (+)-coniine, (+)-pseudoconhydrine, and (+)-sedamine through a common intermediate

Satyalakshmi, Gandham,Suneel, Kanaparthy,Shinde, Digambar Balaji,Das, Biswanath

experimental part, p. 1000 - 1005 (2011/09/20)

The stereoselective total synthesis of the piperidine alkaloids, (+)-coniine, (+)-pseudoconhydrine and (+)-sedamine has been achieved through a common intermediate generated from butane-1,4-diol. The synthetic sequence involves a Maruoka asymmetric allylation and ring-closing metathesis as the key steps.

A rapid access to (±)-sedamine and some original N -benzyl unsaturated analogues

Boussonniere, Anne,Ranaivondrambola, Tsiresy,Lebreton, Jacques,Mathe-Allainmat, Monique

experimental part, p. 2456 - 2462 (2010/09/04)

Reduction of N-alkyl-2-(2-hydroxy-2-phenylethyl)pyridinium salts using excess of sodium triacetoxyborohydride afforded exclusively the corresponding tetrahydropyridine derivative bearing a piperidine ring with a double bond in the 3,4-position. Furthermore, under these conditions, syn-1,3-amino alcohols were obtained in good yield and diastereoselectivity. Georg Thieme Verlag Stuttgart · New York.

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