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Réactifs
NH3
Conditions
θ ordinaire
Produit
RCOO- NH4+
Nom
ACIDES
RCOOH
neutralisation
Remarques
Mécanisme
se déshydrate en amide puis en
nitrile
R-COO- NH4 +
∆
P4O10
R’MgX
éther puis H3O+
R'
R-C-OH
AN
R'
+
LiAlH4
éther puis H3O
R’-OH
R-CH2-OH
Cat : H+ , ∆
O
ester
R'
(RCOO)2Ca
(RCOO)2Ba
R-CHO
neutralisation
O
R’-COOH
PCl5 ou SOCl2
θ ordinaire
MnO, 350°C
ThO2 , 400°C
mélange à froid
puis ∆
R-CO-R’
O
R-C
3 équivalents de R’MgX sont
nécessaires :
• pour le H acide ;
• pour passer à l’alcool
...
AgNO3,KOH
2
...
R-COO
-
; R + Br
R-COO + e -
R-COO
R + CO2
2R
NaOH
CaO , ∆
R-H
décarboxylation
utilisation de sel de sodium
R-CH-COOH
∆
X
Br2
électrolyse
P
- +
R-COO Na + NaOH
R-R
CaO
R-H + Na CO3
2
R-Br