OsO4 (catalytic) OH NMO OH

2. What products would be obtained by treating A-D with NaOt-Bu in t-BuOH? Explain your reasoning, and if more than one product forms, indicate which product is major. Br A Br B C لي Br D

Draw How this molecule reacts with Br2 Then identify halogenated product Then in mono halogenation product, determine r/s configuration as well as labeling products being chiral or achiral

For the following reaction, decide whether a solution of the products would be optically active or not and why. You will need to know the product of this reaction in order to solve this problem. To preview the image click here Br CH3 Na: CEN: acetone O Not optically active, achiral product is formed O Not optically active, racemic mixture is formed O Not optically active, a meso compound is formed O Optically active, a single enantiomer is formed

Draw all of the products, both constitutional isomers and stereoisomers, of the following reactions. a) 4,4-dibromo-1-ethylcyclopentene ---->Br2,H2O       b) 3,3-dibromo-1-ethylcyclopentene  ----> HBr c) 3,3-dibromo-1,2-dimethylcyclopentene ---->  1. BH3.  2. H2O2, NaOH

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Predict the stereochemistry for the following E2 reaction. Draw a Newmann Projection of the reactive conformation and the structure for only major product of the reaction

Carbocations often rearrange, as shown below. Draw in the hydrogens on the two carbons involved in the rearrangement, and show formal arrow-pushing to illustrate the transformation.