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73415-91-5

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73415-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73415-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,1 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73415-91:
(7*7)+(6*3)+(5*4)+(4*1)+(3*5)+(2*9)+(1*1)=125
125 % 10 = 5
So 73415-91-5 is a valid CAS Registry Number.

73415-91-5Relevant articles and documents

Arylboronic acid-mediated glycosylation of 1,2-dihydroxyglucoses

Izumi, Sanae,Kobayashi, Yusuke,Takemoto, Yoshiji

, p. 350 - 362 (2019/07/31)

- We explored direct dehydrative coupling of tetrahydro-2H-pyran-2,3-diol or a 1,2-dihydroxy sugar with various alcohols using a range of arylboronic acids. Among the catalysts, 2-borono-4-trifluoromethylbenzoic acid efficiently promoted acetalization of tetrahydro-2H-pyran-2,3-diol. Ferroceniumboronic acid showed the best catalytic activity for glycosylation of the 1,2-dihydroxy sugar. The major products were 1,2-cJi-a-D-glucopyranosides.

Stereoselective β-mannosylation via anomeric O-alkylation: Formal synthesis of potent calcium signal modulator acremomannolipin A

Li, Xiaohua,Berry, Nader,Saybolt, Kevin,Ahmed, Uddin,Yuan, Yue

, p. 2069 - 2072 (2017/05/04)

Stereoselective β-mannosylation has been investigated via cesium carbonate-mediated anomeric O-alkylation of D-mannose-derived lactol with various electrophiles. It was found that electrophiles bearing trifluoromethanesulfonate (triflate) as the leaving g

Triisobutylaluminium and dusobutylaluminium hydride as molecular scalpels: The regioselective stripping of perbenzylated sugars and cyclodextrins

Lecourt, Thomas,Herault, Alexandre,Pearce, Alan J.,Sollogoub, Matthieu,Sinay, Pierre

, p. 2960 - 2971 (2007/10/03)

To explain the remarkable regioselective de-O-benzylating properties of diisobutylaluminium hydride (DIBAL-H) and triisobutylaluminium (TIBAL) towards polybenzylated sugars or cyclodextrins, we propose a plausible mechanistic rationale critically involving the kinetic formation of a product-generating 2:1 Al-benzylated sugar complex. For the reaction to occur, one pair of adjacent oxygen atoms should first be able to form a chelation complex with the first equivalent of aluminium reagent, either a highly fluxional complex with tetracoordinate aluminium species or a pentacoordinate one. The second equivalent then induces the regioselectivity of the de-O-alkylation by coordinating preferentially to one of the oxygen atoms of the selected pair.

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