(j) Br HO- 25°C Draw the major product(s) of the reaction. Include all stereoisomers formed as part of the major product.

When norbornene undergoes hydroboration-oxidation, a mixture of two stereoisomers is produced in a roughly 6:1 ratio. (a) Draw both of these isomeric products. (b) Which product is favored? Hint: You should build a model of norbornene and consider the transition state leading to each product. 1. BH3 THF ? 2. H2O2, NaOH, H,O Norbornene

Considering stereochemistry, draw the resulting E2 elimination product when H, is removed. H₂ H All H Br |||| X AJ U: S G

What product(s) is(are) formed in the following reaction Br/CH-Clz Br plus enantiomer H3C Et Br Br H and H3C Br H3C Et Et Br он ...Et plus enantiomer H3C Br

2) Draw the products with detailed reaction mechanism, and also indicate the stereochemistry for the following reaction. U OH CH3COCI CH3 pyridine

Please show the major products with stereochemsitry where needed.

What is (are) the major organic product(s) obtained from the following reaction? Br2 O (2R,3R)-dibromobutane meso-2,3-dibromobutane O (2S,3S)-dibromobutane O Racemic mixture

Please draw the product(s) for each reaction scheme. Be sure to clearly include regio and stereochemistry where applicable.

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G.260.