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Organic Reaction Intermediates and Mechanisms

Mechanism Reaction

Give a detailed mechanism for conversion of 2,7-dimethyl-2,6-octadiene, using H3PO4, into 1,1-dimethyl-2-isopropenylcyclopentane.

Alkene and Alkyne Mechanisms

In my organic class we are studying alkenes and alkynes. I am familiar with the addition and elimination procedures. However, I am unclear of how some of the mechanism go since my book only deals with the straight forward mechanisms such as halogenation, hydration, etc. Please see the attachment.

Mechanism & Reducing agent

When amide X is treated with lithium aluminum hydride, the corresponding amine can be isolated in good yield. (a) Provide a concise mechanism for this reaction. (b) Draw the structure of a reducing agent capable of converting an ester to the corresponding aldehyde. Give an explanation as to how this reagent works.

Synthesize a Compound

Synthesize the following compound from the indicated starting material. You may use: - any organic compounds containing three or less carbon atoms - benzene - n-bromosuccimide - triphenylphosphine - MCPBA - methylvinyl ketone - LDA, ethyl acetoacetate - diethyl malonate - wittig reagents - and any inorganic rea

Esters and Aldehydes

(1) Provide a detailed mechanism for reaction 1 and explain why it takes place. (2) Draw the structure of a reducing agent capable of converting an ester to the corresponding aldehyde. Explain in some detail how this reaction works.

Reaction Mechanism: Epoxide and Alcohol

Question: What is the mechanism for the following reaction? Please indicate the stereochemistry and electron transfer mechanism? Also, what kind of compound is the initial reactant and the final product? (Is it an epoxide?) Please see the attached file for the compound diagrams.

Reaction Involving Alcohol

Question: What are the products of these reactions, please include the stereochemistry. - What kind of compound is 1 and 2? (Please show electron transfer as well). Please refer to the attached file to the compound diagrams.