Question

I. name the following compounds

II. write structures for each of the followong structires

III.Arrange alkenes from most to least stable

IV. if rearrangement is expected, draw rearranged structure for wach carbocation

V.

PLEASE HELP, ive been struggling in organic and this is the review for our 3rd exam. if i can get help (and explanations) for 1-4 it would be a big help

CHM 2210 Examination 3 11/02/18 Directions: Please supply all answers in the spaces provided on both sides of the answer page A blank page is included and should be used as scratch paper. Only the answer page will be turned in. I. (12 pts). Name the following compounds indicate stereochemistry where appropriate, E and Z and Ror S designations must be provided.). он Piyon II. (9 pts). Write structures for each of the following compounds (shorthand structures will be accepted): a. (S)-2-pentanol b. trans-4-ethylcyclohexanol (show most stable chair conformation) c. (R)-4-bromo-2-methyl-1-pentene III. (10 pts. Shown below are the structures of five isomeric alkenes. Arrange them in order of stability with the most stable alkene on the right. لمحہ ا لمہ لمحہ IV (12 pts) If rearrangement to a more stable carbocation is expected, write the structure of the rearranged carbocation for each of the following (write no change if nothing happens): V. (10 pts) Arrange the following molecules so that reactivity with KSCH3 in dimethylsulfoxide increases from left to right. rodrom

Answer 1

4 pyridinium brom de (16)-cyclopent-zen-1 of/ YE) - 6-Fluoro-a-methyl! - hex-4-en-z -ot ng By trams-4-ethylcyclohexand (R)-4-bromo-z- methyl-1-pentene. (G more substituted (imore stable) no change carbocation 20 2 carbocation 20 o sut (kesan lomso)