F. W. TANNER 



I. Preparatory reaction: 



C6Hi206->2C3H603 (An intermediate hypothetical body) 



II. Reactions of the intermediate body: 



a) C3H603->CH3CHOH— COOH (Lactic acid) 



b) C3H603->HCOOH+CH3CHO 



Formic Acetaldehyde 

 acid 



c) C3Ho03+Protoplasm->H\'drogenated+CH3— CO^COOH 



protoplasm Pyruvic acid 



CH3— CO— C00H->CH3CH0+C0. 



HI. Dchydrogcnation reactions: 



a) HCOOH + Protoplasm ->Hydrogenated+C02 



protoplasm 



/;) CH3CHO+H.O+Protoplasm->Hydrogenated+CH3COOH 



protoplasm Acetic acid 



IV. Condensation reactions: 



a) 2CH3CHO^CH3CO— CHOH— CH3 



Acetyl-methyl carbinol 



b) 2CH3CHO->CH3CHOHCH3CHO-^CH3CH.CH,COOH 



Aldol Butyric acid 



c) 2CH3COOH— H.0-> CH3— CO— CH.— COOH-^ CO^-^ CH3— CO— CH3 



Aceto-acetic acid Acetone 



V. Regeneration reactions of protoplasm: 



a) Hydrogenated protoplasm -> Protoplasm +H2 



h) Hydrogenated protoplasm+Receptor->Protoplasm+Hydrogen receptor 



Examples of Reaction V (b) 



1 . Hydrogenated+ C3H603-> Protoplasm + CH.OH— CHOH— CH.OH 



protoplasm Glycerol 



2. Hydrogenated+CH3CH0H— COOH->Protoplasm+CH3CH.— COOH 



protoplasm Lactic acid Propionic acid 



3. Hydrogenated+CHjCHO-* Protoplasm +CH3CH2OH 



protoplasm Ethyl alcohol 



4. Hydrogenated + CH3COCHOriCH3->Protoplasm+CH3CHOHCHOHCH3 



protoplasm AcetyLmethyl 2, 3-but_\'lene gl\'Col 



carbinol 



5. Hydrogenated+CH3CH,CiLCOOH->Protoplasm+CH3CH2CH,CH.OH 



protoplasm Butyric acid But\l alcohol 



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