ioe St : oe 4 4 es . 
Sere aa eS rea ig a 
~-. NOTES ON SCIENTIFIC. 4A 
abe 2 SE? eRe pea stam Ail if 
I our of the acid ammoniun ‘lithium, sodium, and depssiun 
Sekar eae Moon ne hen | Hak sl toamate eee i Le ea eae AE 
eanaldehydic ea — In a “comparatively simple manner, i. ., by fasine 
fe) inone with aqueous potash solution, J. Bredt*) succecded in preparing the 
dehyde oD eee acid, aarp oceane In acid (sec.-tert.). _The semi- 
<"f 
is. tay split up by. water. = unstable addition-product might then be 
in 
oe + KOH tae Sea: CHO ae 
Cau | etna a ee Cp 0, 
NE es CO. COK | 
Campion quinone. ae a ; "Intermediate product. / - Semialdehyde of camphoric acid. 
ee the question had to be ‘solved which of the two aldehydoacids admitted 
redt’s formula for. camphoric ‘acid was present. and whether the pidchyde. radical 
es to. a secondary or tertiary carbon atom of the nucleus: es 
CH eRe? CH as 
1 cont aa et yeahs Mee CHO (sec.) 
sC-C-CHs ph gn a2 EC Es CH, 
CHOtet) © «cL [col ritert 
Bat ote ast is Se é te ) eae , 
fe aires O46 oy Sp area WOAH) ice oe Soe 
_ Camphoceanaldehydic Eo ( eapereea a Sup Camphoceanaldehydic AO AA PANE 
j (tert, -SEC.). ven, _ (Bec. -tert.)., 
Pueeibs W was brought about by means of dlechoiuied reduction’ of the aldehydic 
acic d, and that in favour of the tert.-sec. formulation. The result was a tert.-sec. hydroxy 
car boxylic acid, hydroxy canphone acid, when. on. anstractine matt passed over ue 
ea : ie : De . : ce CH i 3 
Mei ae mc | ~~ co | 
HC C-CH, ae = 1.07 (| He CCH, OO 
Ck: a erty Snel | ICH, : 
C-CH, © Pe a USERS BR shh Reterr 
_Hydroxycamphotic acid. Ue ae 
4 
PRS 
- 4 Journ f- Prakt. Chem. u. 9% (1917), 63 — %) PER Loe ioe 274 (1893), 86. 
v9 
