Register to reply

Missing elements of Grignard reagent reactions

by Greywolfe1982
Tags: elements, grignard, missing, reactions, reagent
Share this thread:
Greywolfe1982
#1
Jan30-12, 06:00 PM
P: 62
1. The problem statement, all variables and given/known data

Find the product of each reaction

2. Relevant equations

Butanal (http://www.chemspider.com/Chemical-S...9-fc8e0ffcf41b), reacted first with bromobenzene (http://www.chemspider.com/Chemical-S...0-9b2a445fef1f) then in acid (H3O+)

Bromophenylmagnesium (http://www.chemspider.com/Chemical-S....10254417.html) with cyclohexylethyne (http://www.chemspider.com/Chemical-Structure.63448.html) in diethyl ether

3. The attempt at a solution

I'm really not sure where either go, as neither of them seem to be a standard Grignard reagent reaction. The first is missing an Mg between the carbon group and the halogen, and the second is missing both a carbonyl (C=O) and acidic conditions. Are there alternatives to the standard reaction?
Phys.Org News Partner Science news on Phys.org
Physical constant is constant even in strong gravitational fields
Montreal VR headset team turns to crowdfunding for Totem
Researchers study vital 'on/off switches' that control when bacteria turn deadly
chemisttree
#2
Feb10-12, 12:52 PM
Sci Advisor
HW Helper
PF Gold
chemisttree's Avatar
P: 3,724
There's no way for any of us to answer this question. We don't know how the question was worded or if you were assigned to find flaws.

In the first case you are missing a magnesium as you've indicated. In the second case you are given a primary alkyne as a reagent. Review your list of suitable/unsuitable reagents for this type of reaction for your answer.


Register to reply

Related Discussions
Grignard Reactions Biology, Chemistry & Other Homework 2
Mechanism for reaction of Grignard reagent Biology, Chemistry & Other Homework 0
Purpose of ether in Grignard reagent preparation Biology, Chemistry & Other Homework 4
Grignard Reagent Solvent Biology, Chemistry & Other Homework 1
Grignard Reactions and Mg Chemistry 12