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4132-31-4

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4132-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4132-31-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,3 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4132-31:
(6*4)+(5*1)+(4*3)+(3*2)+(2*3)+(1*1)=54
54 % 10 = 4
So 4132-31-4 is a valid CAS Registry Number.

4132-31-4Relevant articles and documents

GaCl3-catalyzed activation of alkynyl glycosides for the synthesis of O-glycosides

Yadav, Jhillu S.,Yadav, Nagendra N.,Gupta, Manoj K.,Srivastava, Nikhil,Subba Reddy, Basi V.

, p. 517 - 520 (2014)

A catalytic amount of GaCl3 (5 mol%) was found to activate alkynyl glycosides effectively under mild reaction conditions to furnish a variety of O-glycosides in good yields with high β-selectivity. Graphical abstract: [Figure not available: see fulltext.]

Synthesis of photolabile group protected anomeric acetals and its application in carbohydrate synthesis with the assistance of continuous flow photo-reactor

Tiwari, Varsha,Badavath, Vishnu Nayak,Singh, Adesh Kumar,Kandasamy, Jeyakumar

, p. 227 - 236 (2020/03/18)

Selective deprotection of photolabile anomeric 2-nitrobenzyl acetals was achieved using continuous flow photo-reactor (UV radiation at 355 nm) in methanol-water. Various protecting groups such as acetyl, benzyl, benzoyl, benzylidine, TBS, etc. were found to be highly stable during the photolysis.

N-benzoylglycine/thiourea cooperative catalyzed stereoselective O-glycosidation: Activation of O-glycosyl trichloroacetimidate donors

Dubey, Atul,Sangwan, Rekha,Mandal, Pintu Kumar

, p. 123 - 129 (2019/04/17)

A new practical utility for β-stereoselective glycosylation via activation of O-glycosyl trichloroacetimidate donors using N-benzoylglycine/thiourea cooperative catalysis has been demonstrated. This method represents the first instance where amino acid derived N-benzoylglycine is used as a catalyst for O–glycosylation under mild reaction conditions at ambient temperature. NMR spectroscopy studies suggest that thiourea cocatalyst exhibit a cooperative behaviour that has a strong effect on the reaction rate, yield, and the β-selectivity.

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