Two 2-step sequences are shown below to make m-bromoacetophenone. Which one will work better? Briefly tell why. CH3 CH3 Br2 HạC CI Br2 CI FeBr, AICI3 FeBr AICI3 Br SYNTHESIS B SYNTHESIS A

Q: - / + 21- 2- = 3-1 나r 스 > Y 애 Br ㅈ Br

A: Step by step arrow push mechanism of each reaction with suitable reagent use,

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A: The best choice of reagent to perform the given transformation can be shown below,

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A: The conversion is given below in pic.

Q: CN .CN NH3 CH3OH Br Br `NH2

A:

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Q: phenrl ex ces CH3(CH2)2MGBR -? Y + phenol base Z + phenal O.

A: Detail mechanistic pathway is given below to find out the missing intermediate and final product

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A: Intermediate is formed during the reaction.

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A: Given reaction :

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Q: None

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Q: Br HNO, FeBr, Br O,N. Br Br Br NO O,N" A B Br Br O,N. „Br Br NO ON" Br F D

A: Answer is explained below.

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A: The tertiary cyclo-alkyl bromide is transformed into primary alcohol derivative.

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.