For ten points, name this chemist who defined that carbon chains be vertical in the namesake projection that he used to study sugars.
This person discovered a dangerous procedure that requires a mixing a diazo compound with sulfonic and hydrochloric acids to produce an arylhydrazine, a reagent that he then heated in acetic acid to produce an osazone or with heated with zinc chloride to produce an indol. One reaction named for him begins with protonation of a carbonyl oxygen and ends with dehydration, before which the loss and regain of a proton is caused by nucleophillic attack of alcohol on alcohol; that is the mechanism of a reaction co-discovered by Speier that produces esters. For ten points, name this chemist who defined that carbon chains be vertical in the namesake projection that he used to study sugars.
This person discovered a dangerous procedure that requires a mixing a diazo compound with sulfonic and hydrochloric acids to produce an arylhydrazine, a reagent that he then heated in acetic acid to produce an osazone or with heated with zinc chloride to produce an indol.
Emil Hermann {Fischer}