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77870-91-8

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77870-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77870-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,7 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77870-91:
(7*7)+(6*7)+(5*8)+(4*7)+(3*0)+(2*9)+(1*1)=178
178 % 10 = 8
So 77870-91-8 is a valid CAS Registry Number.

77870-91-8Downstream Products

77870-91-8Relevant articles and documents

Direct dehydrative glycosylation catalyzed by diphenylammonium triflate

Hsu, Mei-Yuan,Lam, Sarah,Lin, Mei-Huei,Lin, Su-Ching,Wang, Cheng-Chung,Wu, Chia-Hui

supporting information, (2020/03/13)

Methods for direct dehydrative glycosylations of carbohydrate hemiacetals catalyzed by diphenylammonium triflate under microwave irradiation are described. Both armed and disarmed glycosyl-C1-hemiacetal donors were efficiently glycosylated in moderate to excellent yields without the need for any drying agents and stoichiometric additives. This method has been successfully applied to a solid-phase glycosylation.

Improved catalytic and stereoselective glycosylation with glycosyl N-trichloroacetylcarbamate: application to various 1-hydroxy sugars

Shirahata, Tatsuya,Matsuo, Jun-ichi,Teruya, Satoko,Hirata, Nozomu,Kurimoto, Taku,Akimoto, Nanao,Sunazuka, Toshiaki,Kaji, Eisuke,Omura, Satoshi

experimental part, p. 740 - 749 (2010/06/21)

Efficient catalytic and stereoselective glycosylation was achieved by activating a glycosyl N-trichloroacetylcarbamate with a catalytic amount of Lewis acid in the presence of a glycosyl acceptor and 5 ? molecular sieves. Catalytic one-pot dehydrative glycosylation of a 1-hydroxy carbohydrate was achieved stereoselectively by reaction with trichloroacetyl isocyanate, followed by activation with a catalytic amount of activators.

Sulfoxide Covalent Catalysis: Application to Glycosidic Bond Formation

Boebel, Timothy A.,Gin, David Y.

, p. 5874 - 5877 (2007/10/03)

A versatile glycosylation reaction is used to establish the process of sulfoxide covalent catalysis. Hemiacetals are activated by benzenesulfonic anhydride and a dialkyl sulfoxide catalyst, nBu2SO, for coupling with various nucleophiles (Nu; se

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