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70753-59-2

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70753-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70753-59-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,7,5 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70753-59:
(7*7)+(6*0)+(5*7)+(4*5)+(3*3)+(2*5)+(1*9)=132
132 % 10 = 2
So 70753-59-2 is a valid CAS Registry Number.

70753-59-2Downstream Products

70753-59-2Relevant articles and documents

GLYCOSYLATION USING GLUCOPYRANOSYL FLUORIDES AND SILICON-BASED CATALYSTS. SOLVENT DEPENDECY OF THE STEREOSELECTION

Hashimoto, S.,Hayashi, M.,Noyori, R.

, p. 1379 - 1382 (1984)

The title glycosylation method is economical and operationally simple.The steric course is highly influenced by the nature of the reaction media.

A "traceless" Directing Group Enables Catalytic SN2 Glycosylation toward 1,2- cis-Glycopyranosides

Fu, Yue,Liu, Peng,Ma, Xu,Zhang, Liming,Zheng, Zhitong,Zhu, Xijun

supporting information, p. 11908 - 11913 (2021/08/20)

Generally applicable and stereoselective formation of 1,2-cis-glycopyranosidic linkage remains a long sought after yet unmet goal in carbohydrate chemistry. This work advances a strategy to this challenge via stereoinversion at the anomeric position of 1,2-trans glycosyl ester donors. This SN2 glycosylation is enabled under gold catalysis by an oxazole-based directing group optimally tethered to a leaving group and achieved under mild catalytic conditions, in mostly excellent yields, and with good to outstanding selectivities. The strategy is also applied to the synthesis of oligosaccharides.

A visible light promoted O-glycosylation with glycosyl trichloroacetimidates using eosin Y as an organo photoacid

Li, Hongfang,Liu, Jiao,Ni, Guanghui,Wang, Haimei,Yin, Shan

, (2020/03/06)

A photoacid catalyzed O-glycosylation of alcohols with glycosyl trichloroacetimidates in the presence of commercially available phenolic photoacids, fluorescein, 4′,5′-dibromo-fluorescein, and eosin Y under visible light irradiation by blue LEDs was devel

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