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Cosa (chi) è butyl - definizione
ANY 4-CARBON ALKYL GROUP
Tert-butyl; Isobutyl; T-Bu; I-Bu; S-Bu; C4H9; -Bu; T-butyl; Sec-Butyl; Tert-Butyl; N-Butyl; Secondary butyl; Tertiary butyl; Tert Butyl; T-butyl cation; T-Butyl; Tertiary Butyl; Sec-butyl; Tertiary butyl group; Butyl; N-butyl; Tert-butyl group; Isobutyl group
butyl
['bju:t??l, -t?l]
¦ noun [as modifier] Chemistry of or denoting an alkyl radical ?C4H9, derived from butane: butyl acetate.
Origin
C19: from butyric acid + -yl.
Butyl
·noun A compound radical, regarded as butane, less one atom of hydrogen.
Butyl group
In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula , derived from either of the two isomers (n-butane and isobutane) of butane.
Wikipedia
Butyl group
In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula −C4H9, derived from either of the two isomers (n-butane and isobutane) of butane.
The isomer n-butane can connect in two ways, giving rise to two "-butyl" groups:
- If it connects at one of the two terminal carbon atoms, it is normal butyl or n-butyl: CH3−CH2−CH2−CH2− (preferred IUPAC name: butyl)
- If it connects at one of the non-terminal (internal) carbon atoms, it is secondary butyl or sec-butyl: CH3−CH2−CH(CH3)− (preferred IUPAC name: butan-2-yl)
The second isomer of butane, isobutane, can also connect in two ways, giving rise to two additional groups:
- If it connects at one of the three terminal carbons, it is isobutyl: (CH3)2CH−CH2− (preferred IUPAC name: 2-methylpropyl)
- If it connects at the central carbon, it is tertiary butyl, tert-butyl or t-butyl: (CH3)3C− (preferred IUPAC name: tert-butyl)
Esempi dal corpus di testo per butyl
1. Lisa Rudzinksi. That is a toxic cloud as a result of that butyl acetate.‘‘ Butyl acetate is commonly used as a solvent or as a synthetic fruit flavoring.
2. SOLUTIONS: Avoid products with propyl, methyl, butyl, benzene and parfum listed as ingredients.
3. The crash released butyl acetate, a flammable liquid, from a burning tanker car, authorities said.
4. MTBE÷ No liability protection for refiners of methyl tertiary–butyl ether.
5. MTBE÷ "Safe harbor" provision protects methyl tertiary–butyl ether refiners from product liability lawsuits.