A preliminary communication'from this Laboratory reported the condensation of sodium aci-2- nitroethanol with D-arabinose to give, after hydrolysis of the intermediate sodium aci-2- deoxy-2-nitroheptitols, D-gluco-heptulose and D-mannoheptulose. The synthesis now has been extended to D-lyxose, D-xylOSe and D-ribose to give, respectively, D-galacto- heptulose plus D-tdo-heptulose, 2 7-anhydro-PD-ido-heptulopyranose and 2, 7-anhy-dro- ...
