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405215-55-6

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405215-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 405215-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,2,1 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 405215-55:
(8*4)+(7*0)+(6*5)+(5*2)+(4*1)+(3*5)+(2*5)+(1*5)=106
106 % 10 = 6
So 405215-55-6 is a valid CAS Registry Number.

405215-55-6Relevant articles and documents

Synthesis of (1→3)-C and homo(1→3)-C-linked imino-disaccharides starting from levoglucosenone and isolevoglucosenone

Marquis, Christian,Cardona, Francesca,Robina, Inmaculada,Wurth, Gaby,Vogel, Pierre

, p. 181 - 208 (2007/10/03)

The reaction of 2,5-(benzyloxycarbonyl)imino-2,5-dideoxy-3,4-O-isopropylidene-L-ribose ((-)-15) with levoglucosenone (5) in the presence of Et2A1I gave a 3,4-dideoxy-D-glycero-hex-3-enopyranos-2-ulose derivative ((-)-16) that was converted into the (1→3)-C-linked imino-disaccharide: methyl 3,4-dideoxy-3-[(1′S)-2′,5′-dideoxy-2′,5′- imino-D-ribitol-1′-C-yl)-α-D-lyxo-hexo-pyranoside ((+)-22). The addition of benzyl alcohol to isolevoglucosenone (3), followed by cross-aldol condensation with 3,6-[tert-butoxycarbonyl]imino-2,3,6trideoxy-4,5-O-isopropylidene-L-arabino- hexose ((+)-30) generated, after water elimination, a single enone ((+)-31) that was converted into a homo-(1→3)-C-linked imino-disaccharide: 3-deoxy-3-(1′,2′,3′,6′-tetradeoxy-3′,6′- imino-L-arabino-hexitol-1′-C-yl)-β-D-galactofuranose (44).

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