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181717-14-6

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181717-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181717-14-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,1 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181717-14:
(8*1)+(7*8)+(6*1)+(5*7)+(4*1)+(3*7)+(2*1)+(1*4)=136
136 % 10 = 6
So 181717-14-6 is a valid CAS Registry Number.

181717-14-6Relevant articles and documents

Oxacycle synthesis via intramolecular reaction of carbanions and peroxides

Willand-Charnley, Rachel,Puffer, Benjamin W.,Dussault, Patrick H.

supporting information, p. 5821 - 5823 (2014/05/20)

The intramolecular reaction of dialkyl peroxides with carbanions, generated via chemoselective metal-heteroatom exchange or deprotonation, provides a new approach to cyclic ethers. Applied in tandem with C-C bond formation, the strategy enables a one-step annelation to form oxaospirocycles.

Synthesis of indolines via a domino Cu-catalyzed amidation/cyclization reaction

Minatti, Ana,Buchwald, Stephen L.

supporting information; experimental part, p. 2721 - 2724 (2009/05/27)

(Chemical Equation Presented) A highly efficient one-pot procedure for the synthesis of indolines and their homologues based on a domino Cu-catalyzed amidation/nucleophilic substitution reaction has been developed. Substituted 2-iodophenethyl mesylates and related compounds afforded the corresponding products in excellent yields. No erosion of optical purity was observed when transforming enantiomerically pure mesylates under the reaction conditions.

Controlled double-bond migration in palladium-catalyzed intramolecular arylation of enamidines

Ripa, Lena,Hallberg, Anders

, p. 7147 - 7155 (2007/10/03)

Palladium-catalyzed intramolecular cyclization of N-(N′-tert-butylformimidoyl)-6-[2-(2-iodophenyl)-ethyl]-1,2,3,4- tetrahydropyridine (1a) and N-(N′-tert-butylformimidoyl)-6-[3-(2-iodophenyl)propyl]-1,2,3,4- tetrahydropyridine (1b) respectively results in formation of spiro compounds 1′-(N-tert-butylformimidoyl)-3′,4′-dihydrospiro[indan-1, 2′(1′H)-pyridine] (4a), 1′-(N-tert-butylformimidoyl)-1′,6′-dihydrospiro[indan-1, 2′(3′H)-pyridine] (5a), and 1′-(N-tert-butylformimidoyl)-5′,6′-dihydrospiro[indan-1, 2′(1′H)-pyridine] (6a) and 1′-(N-tert-butylformimidoyl)-3,3′,4,4′- tetrahydrospiro[naphthalene-1(2H),2′(1′H)-pyridine] (4b), 1′-(N-tert-butylformimidoyl)-1′,3,4,6′- tetrahydrospiro[naphthalene-1(2H),2′(3′H)-pyridine] (5b), and 1′-(N-tert-butylformimidoyl)-3,4,5′,6′- tetrahydrospiro[naphthalene-1(2H),2′(1′H)-pyridine] (6b). The double-bond migration process can be controlled, and any of the three double-bond isomers can be prepared by employing proper ligands. A combination of BINAP and the amidine function was required to obtain the isomers 5a and 5b with the double bond in the homoallylic position relative to the aryl group. An electrospray ionization mass spectrometric study was conducted to support suggested reaction intermediates.

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