Aldehida Flashcards by Eleonora Rotaru

Q

Grupa funcțională a aldehidelor

A

R-C=O-H

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Q

Formula generală a aldehidelor

A

CnH2nO sau CnH2n+1CHO

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Q

Obținerea aldehidelor

A

Oxidarea alcoolilor
Hidratarea alchinelor

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Q

Oxidarea alcoolilor +oxid de cu

obinerea aldehidelor

A

CH3-CH2-OH+CuO->CH3-C=O-H+
Cu+H2O

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Q

Hidratarea alchinelor , reacția Kucerov

obtinerea aldehidelor

A

C2H2+H2O->CH3-C=O-H

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Q

Proprietățile chimice Aldehidelor

A

Reducere (hidrogenarea ) —>alcooli
Oxidarea —> acid carboxilic

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Q

Reducerea aldehidelor ( hidrogenarea )

A

CH3-C=O-H +H2-> CH3-CH2-OH
Etanal. Etanol

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Q

Oxidarea aldehidelor cu Ag2O

A

CH3-C=O-H+Ag2O—> CH3-C=O-OH +2Ag

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Q

Oxidarea aldehidelor cu Hidroxid de cupru

A

CH3-C=O-H+2Cu(OH)2–>CH3-C=O-OH
+Cu2O+H2O

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