Ochem

Could you please help me complete problem 2 and problem 3 and please check problem 4? thanks. --- - draw the condensed formula... --- (See attached file for full problem description)

ochem 2

Please check problem 5 and problem 6 (and help me identify chiral carbons). Also please help me complete problem 7. Thanks. --- - Write the condensed structural formula... --- (See attached file for full problem description)

Homework Problem to help with mechanism knowledge.

I am looking to know where to push arrows to go from one step to the next, to see if I'm on the right track. I can figure out the needed reagents, but I have problems with arrow pushing. I can go from one step to the next, but generally have no idea exactly what happened to get me from A to B. (See attached file for full p ...continues

Arrow pushing

I need help knowing exactly where to push arrows from in one molecule (which bond, carbon etc.) and where it goes to in the next molecule (which carbon, oxygen etc) I'm just looking to get a good understanding on this example problem set so I have a good understanding of it for future problems. I am just not sure where exactly ...continues

cyclopentadiene

Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures? Also, given that cyclopentadiene monomer is more stable at higher temps, why is it necessary to keep monomer cold in order to prevent its conversion back to dimer?

cyclopentadiene (2)

Unlike cyclopentadiene, 1,3 cyclohexadiene can be stored for long periods at room temperature. When 1,3 cyclohexadiene is heated at 180 degrees C for two hours, a 30% yield of two products A and B, each of empirical formula C12H6 can be isolated. Hydrogenation of either A or B gives the same hydrocarbon C, of empirical formula ...continues

dibromostilbene

Why is meso-dibromostilbene (and not d, l) obtained in bromination of trans-stilbene?

flowsheet

Write a flowsheet to show the logical process in use of silver nitrate and sodium iodide reagent tests to determine whether an unknown alkyl is primary, secondary, or tertiary.

methyl benzoate

In preparation of methyl benzoate, what is the purpose of 1. washing the organic layer with sodium bicarbonate solution? 2. washing the organic layer with saturated sodium chloride solution? 3. treating the organic layer with calcium chloride pellets?

synthesis of trans -9-(2-phenylethenyl) anthracene

In synthesis of trans-9-(2-phenylethenyl) anthracene a carbonyl group is converted to a benzylidene group by reaction with the ylide derived from benzyltriphenylphosphorium chloride. Would it have been possible to use the ylide derived from benzyltrimethylphosphonium chloride in this reaction? Answer the same question for the ...continues