НО Ph' Ph NO2 Ph Ph Ph NH, HN. CI HN NH, of Br Ph' Ph HN, NH2 HN. NH2 H. OH HO HO HN, NH2 HN, NH2 Carbuterol

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 7CO
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Question

Following is an outline of a synthesis of the bronchodilator carbuterol, a beta-2 adrenergic blocker with high selectivity for airway smooth muscle receptors.

Q.Why is it necessary to add the benzyl group, PhCH2—, as a blocking group in Step 1?

НО
Ph'
Ph
NO2
Ph
Ph
Ph
NH,
HN.
CI
HN
NH,
of
Br
Ph'
Ph
HN,
NH2
HN.
NH2
H.
OH
HO
HO
HN,
NH2
HN,
NH2
Carbuterol
Transcribed Image Text:НО Ph' Ph NO2 Ph Ph Ph NH, HN. CI HN NH, of Br Ph' Ph HN, NH2 HN. NH2 H. OH HO HO HN, NH2 HN, NH2 Carbuterol
Expert Solution
Step 1

Given is an outline of a synthesis of the bronchodilator carbuterol, a beta-2 adrenergic blocker with high selectivity for airway smooth muscle receptors.

Chemistry homework question answer, step 1, image 1

It necessary to add the benzyl group, PhCH2—, as a blocking group in Step 1 has to be explained below,

 

Step 2

It is important to create the phenol hydroxyl bunch by utilizing benzyl liquor through ether union on the grounds that, in sync, there is a chance of the development of five-membered lactam, to stay away from these item phenol bunch is to be ensured.

Therefore, the response is given below,

 

 

Chemistry homework question answer, step 2, image 1

 

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