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NodRM-IV factor

A -acetylneuraminic acid, 358 dehydro, 358 glycosides, 358 oligosaccharides, 357, 413 Nef reaction, 176 Nephritogenoside, 455 NodRM-IV factor, 328, 335 D-Nojirimycin, 185... [Pg.329]

The mildest reagent for cleaving TBS ethers is pyridinium p-toluenesulfonate (PPTS) in a protic solvent — usually methanol. Under these conditions a primary TBS ether can be cleaved in the presence of a 2-(trimethylsilyl)ethoxy-methyl (SEM) ether and 2-(trimethylsilyl)ethyl ester [Scheme 4.26]. Primary TBS ethers cleave at room temperature but secondary TBS ethers may require elevated temperature. In the transformation shown in Scheme 4.27 two TBS ethers were cleaved in the presence of a TIPS ether." rerf-Butyldiphenylsilyl (TBDPS) ethers are impervious to attack under these conditions as evinced by the selective removal of a primary TBS ether in the presence of an equally exposed primary TBDPS ether in a synthesis of NodRm-IV factors, glycolipids produced by symbiotic fungi that elicit formation of nitrogen-fixing root nodules in legumes [Scheme 4.28]. ... [Pg.200]

See other pages where NodRM-IV factor is mentioned: [Pg.292]    [Pg.313]    [Pg.322]    [Pg.328]    [Pg.335]    [Pg.338]    [Pg.206]    [Pg.168]    [Pg.171]    [Pg.494]    [Pg.505]    [Pg.292]    [Pg.168]    [Pg.171]    [Pg.176]    [Pg.329]    [Pg.494]    [Pg.505]    [Pg.292]    [Pg.313]    [Pg.322]    [Pg.328]    [Pg.335]    [Pg.338]    [Pg.206]    [Pg.168]    [Pg.171]    [Pg.494]    [Pg.505]    [Pg.292]    [Pg.168]    [Pg.171]    [Pg.176]    [Pg.329]    [Pg.494]    [Pg.505]    [Pg.855]   
See also in sourсe #XX -- [ Pg.328 , Pg.335 ]



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Oligosaccharide synthesis by selective NodRM-IV factor

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