Los Aldehidos

ALDEHIDOS

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 Cuando

en los alcoholes primarios su grupo funcional y al carbono al que está unido pierden un Hidrógeno.

CH3-CH2-OH CH3-CH-OH H

CH3-C-H O

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R-C-H

R-CH O

O R-CHO Formilo This page was created using BCL ALLPDF Converter trial software.

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R-CHO

Ar-CHO

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IUPAC 1. Escoge la cadena base (mรกs larga que contenga al grupo formilo).

CH3 CH3-CH-C-CH2-CHO CH3

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2. Numera la cadena por el extremo que contenga el grupo formilo.

CH3 5

4

3

2

1

CH3- CH-C-CH2CHO CH3

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3.Expresa los números y posiciones de los sustituyentes en la forma usual

CH3 5

4

3

2

1

CH3-CH-C-CH2-CHO CH3 4-ciclobutil-3,3-dimetil

4. Nombra la cadena base reemplazando la terminación “o” por el sufijo al, dial, trial, etc.

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Si el grupo aldehído está unido a un ciclo, se nombre la cadena seguida del sufijo carbaldehído, asignando el número 1 al carbono donde esté unido el grupo formilo.

CH3 2 CH3-CH2

1

3 4

CHO

5

3-Etil-2-metil-ciclopentanocarbaldehído

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



1. Se utilizan los nombres comunes derivados de los ácidos carboxílicos.

2. Las posiciones de los sustituyentes se indican con letras griegas, comenzando con el carbono adyacente al grupo formilo.

CH3



γ β α CH3-CH-C-CH2-CHO

δ

CH3

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GRACIAS!!!!!!!

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