E2 Alkyl halides: Br Bor Br Br Br BV Ban/NU: t-Buok, Nao Et NaH Write the mechanism for all combinations of reactions given in this handout (attached below). Include stereochemistry when possible. Write and

Give detailed mechanism Solution with explanation needed..don't give Handwritten answer..give also type of reaction..SN1 ,SN2, E1 and E2

d) In any Friedel-Crafts alkylation reaction starting with benzene and using one equivalent of the alkylating reagent, there is a always a small amount of disubstituted product which is formed. By contrast, such outcomes are not typically observed for any halogenation reactions starting from benzene and similarly using EAS chemistry. Please explain the basis for this apparent dichotomy.

(b) Discuss about the stability factors of the reaction intermediates, which involved in a name reaction "Wittig rearrangement".

3. For the following variants of the rearrangement reactions we have covered in class, propose a feasible step-by-step mechanism for each of them. (a) NaOMe MeOH

Give detailed Solution with explanation needed..please explain....for a good review

Give detailed mechanism Solution with explanation needed...don't give Handwritten answer..complete the following reactions

Give detailed Solution with explanation needed...predict the reactant/  product..give the mechanism....

Give detailed mechanism Solution with explanation needed...don't give Handwritten answer

[References] Draw the expected major organic product of the Sharpless epoxidation of each allylic alcohol using (-)-diethyl tartrate as the chiral catalyst. (a) (b) All hydrogen atoms are implied. If a chiral atom is attached to a hydrogen atom, you should not show the hydrogen atom but use either a wedge or a dashed bond. Apply formal charges where appropriate. Omit lone pairs and radical electrons from your answer. • Omit + signs between structures. ● HO O HO -OCH3 کر ? ChemDoodle Previous Next