Identify the missing compounds in the sequence. Suggest detailed mechanisms for each transformation.

Please see the attached "Word" file for structural information. Suggest a synthetic route to intermediate X given the reagents and conditions in the attachment. For step b-e provide a detailed mechanism.

Organic compounds A and B react to give X under basic conditions, via a well known reaction. The solution will guide you through the mechanism from A and B and provide the name of this key reaction.

Please see the attached file for structural information (Brainmass Problem 4). 1) What types of compounds are A and B. 2) What is the name of the mechanism by which X is formed? 3) Write a detailed mechanism showing the formation of X.

Problem: A method used to protect Esters and Acids. Solution: Gives product X and the mechanism of the second step.

Please see the attached "Word" document for structures (Brainmass Problem 5). Identify the product X. The first step is trivial ( though it is well worth practising a mechanism for completeness). Please give a detailed mechanism for the second step in the formation of the protecting group.

The Problem gives a starting material, a target X and a proposed intermediate. Suggest a synthetic sequence to the target. The answer details a route to the target compound, covering some well known organic reactions.

Please see the attached file for chemical structures (Brainmass Problem 7). Problem: Suggest a five step synthetic sequence to give compound X

Synthetic sequences

Question: Give reagents that would result in the organic transformations illustrated. In each case name the functional group. Answer: Provides the expected reagents for each transformation. Please see the attached "Word" file for synthetic sequences. (Brainmass Problem 8)