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TestYourself8and9Ans - H 2 gas Pt Br 2 HOCl 1 ) 9- B B N 2...

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Unformatted text preview: H 2 gas Pt Br 2 HOCl 1 ) 9- B B N 2 ) H 2 O 2 , N a O H OsO 4 Different Cs - equally substituted- Regioisomers are possible Same things add, no regioisomers No chiral carbons form 1 product Same things add, no regioisomers 2 chiral carbons form Stereoselection! 2 products form - racemic (R) (S) (R) (R) Br Br + enantiomer Same things add, no regioisomers 2 chiral carbons form 2 products - racemic HO OH CH 3 H H + Enant OH + enant HO (S) (R) Regioisomers - 2 connectivities 2 chiral carbons form - stereoselection! racemic mixture for each regio! OH + enant (R) (S) + enant HO Cl Cl H 2 gas Pt Br 2 HOCl 1 ) 9- B B N 2 ) H 2 O 2 , N a O H OsO 4 Different Cs - UNequally substituted - Regioi selection possible! Same things add, no regioisomers No chiral carbons form 1 product Same things add, no regioisomers 2 chiral carbons form 2 products - racemic + enantiomer Same things add, no regioisomers 2 chiral carbons form 2 products - racemic + Enant Regioiselection, one connectivity is favored 2 chiral carbons form...
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