Answered: +ZnBr ОН H20 CH;CH Н + CH,Cн OCH3…

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter19: Aldehydes And Ketones: Nucleophilic Addition Reactions

Section19.11: Nucleophilic Addition Of Phosphorus Ylides: The Wittig Reaction

Problem 17P: -Carotene, a yellow food-coloring agent and dietary source of vitamin A can be prepared by a double...

See similar textbooks

Related questions

Question

The Reformatsky reaction is an addition reaction in which an organozinc reagent is used instead of a Grignard reagent to add to the carbonyl group of
an aldehyde or a ketone. Because the organozinc reagent is less reactive than a Grignard reagent, a nucleophilic addition to the ester group does not occur.
The organozinc reagent is prepared by treating an a-bromo ester with zinc.

Describe how each of the following compounds can be prepared, using a Reformatsky reaction:

+ZnBr
ОН
H20
CH;CH
Н + CH,Cн
OCH3
CH3CH,CHCH
OCH3
CH3CH,CHCH'
OCH3
ZnBr
ČH3
CH3
B-hydroxy ester
organozinc reagent
Describe how each of the following compounds can be prepared, using a Reformatsky reaction:
ОН
ОН
ОН
С.
.C.
a. CH;CH,CH,ĊHCH,
OCH3
b. CH;CH,CHCH
CH3CH,CH=Ç
Но,
d. CH3CH,CCH2
OCH3
с.
HO,
CH2CH3
CH3
CH2CH3

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Expert Solution

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Protection of Groups in Organic Synthesis

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions