The absolute configuration of is :
Option: 1 (2R, 3S)
Option: 2 (2S, 3R)
Option: 3 (2S, 3S)
Option: 4 (2R, 3R)
As we learnt ,
Chiral Carbon -
Those carbon on which four different groups are present.
- wherein
For C2
This rotation suggests R but the least prior group is at horizontal position so the configuration is R.
For C3
This rotation suggests S but the least prior group is at horizontal position so the configuration is S.
View Full Answer(1)In the following reaction sequence : The compound I is :
Option: 1
Option: 2
Option: 3
Option: 4
View Full Answer(1)
The major product of the following reaction is
Option: 1
Option: 2
Option: 3
Option: 4
As we have learned @4233
Reaction follows the path way
View Full Answer(1)Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution ?
Option: 1
Option: 2
Option:3
Option:4
Sugar that have an aldehyde, a ketone, a hemiacetal or a hemiketal or a hemiketal group is able to reduce an oxidising agent, These sugar are classified as reducing sugars.
Hemiacetal can be easily reduced by oxidising agent such as Tollen's reagent
Therefore, option(3) is correct.
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Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to decolourize the colour of bromine ?
Option: 1
Option: 2
Option: 3
Option: 4
View Full Answer(1)
The major product of the following reaction is:
Option: 1
Option: 2
Option: 3
Option: 4
The given reaction sequence occurs as
Hence, the option number (3) is correct.
View Full Answer(1)Iodoform test is given by
Option: 1 Pentan-2-one
Option: 2 Ethanoic acid
Option: 3 Pentan-3-one
Option: 4 Methoxymethane
Ask questions answer she saw a tiger
View Full Answer(3)
Read the given passage and answer the questions that follow : The substitution reaction of alkyl halide mainly occurs by or mechanism. Whatever mechanism alkyl halides follow for the substitution reaction to occur, the polarity of the carbon halogen bond is responsible for these substitution reactions. The rate of reactions are governed by the stability of carbocation whereas for reactions steric factor is the deciding factor. If the starting material is a chiral compound, we may end up with an inverted product or racemic mixture depending upon the type of mechanism followed by alkyl halide. Cleavage of ethers with HI is also governed by steric factor and stability of carbocation, which indicates that in organic chemistry, these two major factors help us in deciding the kind of product formed. Write the structures of the products formed when ethoxybenzene is treated with HI.
Products formed when ethoxybenzene is treated with HI are
C2H5I + C6H5OH
View Full Answer(1)Iodoform test is not given by
Option: 1 Hexan-2-one
Option: 2 Hexan-3-one
Option: 3 Ethanol
Option: 4 Ethanal
Iodoform test is not given by Hexan-3-one, since it is not methyl ketone
Hence option B is correct
View Full Answer(1)The substitution reaction of alkyl halide mainly occurs by or mechanism. Whatever mechanism alkyl halides follow for the substitution reaction to occur, the polarity of the carbon halogen bond is responsible for these substitution reactions. The rate of reactions are governed by the stability of carbocation whereas for reactions steric factor is the deciding factor. If the starting material is a chiral compound, we may end up with an inverted product or racemic mixture depending upon the type of mechanism followed by alkyl halide. Cleavage of ethers with HI is also governed by steric factor and stability of carbocation, which indicates that in organic chemistry, these two major factors help us in deciding the kind of product formed. Write the structures of the products formed when anisole is treated with HI.
CH3I + C6H5OH are the products formed when anisole is treated with HI.
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