5. Propose mechanisms for the following reactions (20 points) 1. CH3MgBr OCH CH2HO + CH CH...
20 3) Propose plausible mechanisms for two of the following four reactions, including arrows to describe electron flow and all intermediates. o CH,OH H2SO, H20 سلم NH b) crii DINH SOBE CN NH OH HN
Part II. Mechanisms!!! Propose mechanisms using arrow-pushing notations to show the transformations of the following reactions. d) CH OH heat CH, OH heel NE он EN E CH OH heat
e phone Propose mechanisms for the following reactions t h roug h radi o od osmans (a) Ph-C-ci + (CH) CHOH - Ph-C-OCH(CH3)2 (b) Ph-C-OCH, NaOH Ph-C-0- + CH,OH HO $ 135 1o slona CH3 OAc - он (D) CH -CH-CH.CH, (R)-butan-2-ol Ac, Tacetic anhydride) CH, CH-CH,CH, 2-butyl acetate
82. Propose mechanisms to account for all the products formed in the following reactions. CH B CH *5=.8.8.0.0
5. Propose reasonable mechanisms to the following reactions: (5%) CHO CHO 1. OH CHO 2. HO, A co
20. Propose complete mechanisms for the reactions shown (6 pts.) HPO OH Heat
Propose plauisible mechanisms of the the following reactions, including arrows to describe electron flow and all intermediates CN CH, OH منم a) H2SO4, H2O NH ۔ تی b) NH2 SOBr2 CN c) a NH2 OH HN O
b) 0 excess CHLi ml. Propose detailed mechanisms consistent with the following reactions. (5 pt.) a) OH H-O-Cr-o-H
5. Provide reasonable step-by-step mechanisms for the following reactions. Use arrows to indicate the movement of electrons. cat. NaOCH CH, OH (solvent) OCH cat. NaOH, H20 (solvent)
9. Provide the major products and mechanisms for the following reactions. (16 points) OH 1) NaH 2) CH,CH! CH2CH3