Hydrogen Transfer by a Chemi-osmotic Type of Mechanism

chromogen of which exhibited 26 per cent of t... absorption at 590 rnp of an equal weight, of N.scetyl. ~_____ J reptinne\ value as the +anhydrc sugar has been rla+.an+=r L% the pyrolysis mixture, which is not ~l*evl pyrclyais is used in the preparation of the w&j sugar from ivory nut menncn~~. It is notewcrg that B heated mixture (1 : 1) of this anhydro 8,,&? and n-glucosamine hydrochloride gave B 20 per ew mad-r ‘Geld (by weight and by Elson-Mcrgyl -“1.-L. , of 0-manncsyl glucosamine type d& uarides than a heated D-manno D-glucosam~, hydmchloride mixture. Furthermore, ~-rhmm,~ (GdeoKy-L-mannose), which ommct form B 1,6. anhydro did not yield Elson-Morgm. txxitivd rlisaodw,*irl~~ borohydride (ZOO mgm.) ir-%ya$ ml.) at rccm temperature for 5 hr. yielded s ory&,Uine O-mannoayl 2-acetsmido 2.deoxv eluoitol (43 mw.: from