II. RESEARCH. 585 



23. Argentic amylethoxalate C 9 H 17 AgO 3 



24. Ethylic amylethoxalate C^O, or { cOEto tH ' 



jCAyEtHo 



25. Baric amylethoxalate Cj 8 H 34 BaO 6 or j^^Bao' . 



I C AyEtHo 



26. Diamyloxalic acid C J2 H 24 O, OT {cO&o' 



27. Ethylic diamyloxalate C 14 H28O 



28. Amylic diamyloxalate C 1? H 84 O 3 or [ 



f CAy 2 Ho 



29. Baric diamyioxalate C 24 H 46 BaO 3 or j^Bao". 



\CAy 2 Ho 



IX. SYNTHESIS OF ACIDS OF THE ACRYLIC SERIES. (Frankland & 



Duppa.) 



1 . Methacrylic acid C 4 H 6 O 2 or 



2. Argentic methacrylate C 4 H 5 AgO 2 or { 



3. Ethylic methacrylate C 6 H 10 O 3 01 



/' 



4. Baric methacrylate C 6 Hi BaO 4 or V_^Bao' . 



I CMe"Me 

 fCMe"Me 



5. Cupric methacrylate C 8 H 10 CuO 4 or r C QCuo". 



|cMe"Me 



6. Methyl-crotonic acid C 6 H 8 O 2 



7. Argentic methyl-crotonate C 5 H 7 AgO 2 



8. Ethylic methyl-crotonate C 7 H 12 O 2 



I 



CO, 



f CEt"Me 



9. Baric methyl-crotonate Cj H 14 BaO 4 or ^j^. 



{ CEt^Me 



10. Ethyl-crotonic acid C 6 H 10 O 2 



1 1 . Potassic ethyl-crotonate C 6 H 9 KO 2 or K O * 



