Stearic effect - reactivity of aldehydes and keto, Chemistry

Assignment Help:

Stearic effect - relative reactivity of aldehydes and keto

The size of the alkyl group is much more than that of hydrogen. In aldehydes, there is one alkyl set although in ketones, there are two alkyl sets linked to the carbonyl group. The alkyl groups are bigger as compared to a hydrogen atom and these cause hindrance to the attacking group. This is termed as stearic hindrance. As the size and number of the alkyl sets increase, the hindrance to molest of nucleophile as well increases and the reactivity of a carbonyl decreases. The short of hindrance in nucleophilic attack is other reason for the better reactivity of formaldehyde. So, the reactivity follows the order:

2435_Stearic effect.png


Related Discussions:- Stearic effect - reactivity of aldehydes and keto

What are the chemical properties of nitric acid, Q. What are the Chemical P...

Q. What are the Chemical Properties of Nitric Acid? Ans. Reactions as an acid: Nitric acid ionizes well because it is a strong acid. HNO 3 --> H + + NO3 - It tur

Calculate ionisation potential of the electron, Calculate ionisation potent...

Calculate ionisation potential of the electron in the first exited state of singly ionised Helium atom is given by ionisation of Hydrogen atom to be 13.6 eV. Ans: According to

Number of unpaired electrons in nitrogen, The number of unpaired electrons ...

The number of unpaired electrons in nitrogen is: (1) 1        (2) 3        (3) 2        (4) None of these Ans: 3

Determing most ionic boonds, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE

How lots of significant figures, How lots of significant figures are in the...

How lots of significant figures are in the following measurements? a. 0.002 849 kg b. 40 030 kg Imply rules 1-4 from above. Verify your answers by writing the quantit

Major functions of emulsifiers, Q. Major functions of emulsifiers? The ...

Q. Major functions of emulsifiers? The major functions of emulsifiers in food systems are as follows. The emulsifier: • modifies the intermolecular forces which stabilize

Determine total energy of the electrons of hydrogen atom, The ratio between...

The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is: (1) 2 : 1  (2)1 : 1      (3)1 : - 1           (4)

Objective of elements of group 16, Q. Objective of elements of group 16? ...

Q. Objective of elements of group 16? You should be able to: • describe the occurrence, extraction and uses of the elements of Group 16, • describe the allotropic forms o

Programming, how can one use programming in the the chemical field?

how can one use programming in the the chemical field?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd