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885056-96-2

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885056-96-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 885056-96-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,5,0,5 and 6 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 885056-96:
(8*8)+(7*8)+(6*5)+(5*0)+(4*5)+(3*6)+(2*9)+(1*6)=212
212 % 10 = 2
So 885056-96-2 is a valid CAS Registry Number.

885056-96-2Relevant articles and documents

Bronsted Acid Catalyzed Cyclization of Inert N-Substituted Pyrroles to Benzo[ f ]pyrrolo[1,2- a ][1,4]diazepines

Gao, Zeng,Qian, Jinlong,Yang, Huameng,Zhang, Jinlong,Jiang, Gaoxi

, p. 930 - 934 (2021/04/27)

Two approaches involving intramolecular and intermolecular cyclization, respectively, have been developed for the direct and practical construction of a series of important benzo[ f ]pyrrolo[1,2- a ][1,4]azepines by using Bronsted acid catalysts. Upon catalysis by TsOH, the intramolecular dehydroxylation/ring closure of 3-hydroxy-2-[2-(1 H -pyrrol-1-yl)benzyl]isoindolin-1-ones provided various racemic benzo[ f ]pyrrolo[1,2- a ][1,4]azepines in high yields. Furthermore, enantioenriched benzo[ f ]pyrrolo[1,2- a ][1,4]azepines were also obtained by chiral phosphoric acid catalyzed intermolecular addition of [2-(1 H -pyrrol-1-yl)phenyl]methanamines to 2-formylbenzoates under mild conditions.

Regioselective synthesis of diversely substituted diazoninones through a post-Ugi gold-catalyzed intramolecular hydroarylation process

Li, Zhenghua,Kumar, Amit,Vachhani, Dipak D.,Sharma, Sunil K.,Parmar, Virinder S.,Van Der Eycken, Erik V.

, p. 2084 - 2091 (2014/04/17)

A highly efficient approach for the regioselective construction of fused nine-membered rings (diazoninone framework) was developed by employing sequential Ugi and gold-catalyzed intramolecular hydroarylation reactions. The scope of this intramolecular cyc

Synthesis of 9-arylamino- and (Z)-9-arylimino-9H-pyrrolo[1,2-a]indoles by reactions of 2-(pyrrol-1-yl)benzaldehydes with aryl amines

Kobayashi, Kazuhiro,Himei, Yasutoshi,Fukamachi, Shuhei,Tanmatsu, Miyuki,Morikawa, Osamu,Konishi, Hisatoshi

, p. 4356 - 4359 (2007/10/03)

Heating mixtures of 2-(pyrrol-1-yl)benzaldehydes and aryl amines under argon afforded 9-arylamino-9H-pyrrolo[1,2-a]indoles, via cyclization of the resulting 2-(pyrrol-1-yl)benzaldimine intermediates. Heating in the presence of oxygen afforded (Z)-9-arylim

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