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. To purchase, go to http://store.bcltechnologies.com/productcart/pc/instPrd.asp?idproduct=1
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. 4-ciclobutil-3,3dimetilpentanal This page was created using BCL ALLPDF Converter trial software. To purchase, go to http://store.bcltechnologies.com/productcart/pc/instPrd.asp?idproduct=1
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
γ- ciclobutil- β, β- dimetil Valeraldehído This page was created using BCL ALLPDF Converter trial software. To purchase, go to http://store.bcltechnologies.com/productcart/pc/instPrd.asp?idproduct=1
GRACIAS!!!!!!!
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