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Ch. 8
CHEM 301
| Question | Answer |
|---|---|
| Addition of HX | Add. Reagents: HX What adds? -H, -X Regioselectivity: Markovnikov Stereoselectivity: n/a Rearrangement possible? yes |
| Addition of HBr with H2O2 | Add. Reagents: HBr, peroxide What adds? -H, -Br Regioselectivity: Anti-Markovnikov Stereoselectivity: n/a Rearrangement possible? no |
| Acid-Catalyzed Hydration | Add. Reagents: H2O, H+ What adds? -H, -OH Regioselectivity: Markovnikov Stereoselectivity: n/a Rearrangement possible? yes |
| Oxymercuration-Demercuration | Add. Reagents: 1) Hg(OAc)2, H2O, 2)NaBH4 What adds? -H, -OH Regioselectivity: Markovnikov Stereoselectivity: n/a Rearrangement possible? no |
| Alkoxymercuration-Demercuration | Add. Reagents: 1) Hg(OAc)2, ROH, 2)NaBH4 What adds? -H, -OR Regioselectivity: Markovnikov Stereoselectivity: n/a Rearrangement possible? no |
| Hydroboration-Oxidation | Add. Reagents: 1) BH3, 2) H2O2, -OH What adds? -H, -OH Regioselectivity: Anti-Markovnikov Stereoselectivity: syn Rearrangement possible? no |
| Hydrogenation | Add. Reagents: H2 and Pt, Pd, or Ni What adds? -H, -H Regioselectivity: n/a Stereoselectivity: syn Rearrangement possible? no |
| Simmons-Smith | Add. Reagents: CH2I2, Zn(Cu) What adds? -CH2- Regioselectivity: n/a Stereoselectivity: retention of stereochemistry Rearrangement possible? no |
| alpha-elimination | Add. Reagents: CH2X2 or CHX3 w/ strong base What adds? -CHX- or -CX2- Regioselectivity: n/a Stereoselectivity: retention of stereochemistry Rearrangement possible? no |
| Addition of halogens | Add. Reagents: X2, inert solvent What adds? -X, -X Regioselectivity: n/a Stereoselectivity: anti Rearrangement possible? no |
| Halohydrin Formation | Add. Reagents: X2, H2O What adds? -X, -OH Regioselectivity: -OH to more substituted side Stereoselectivity: anti Rearrangement possible? no |
| Epoxidation | Add. Reagents: R-CO3H What adds? -O- Regioselectivity: n/a Stereoselectivity: retention of stereochemistry Rearrangement possible? no |
| Epoxidation + Ring Opening | Add. Reagents: R-CO3, H+ (aq) What adds? -OH, -OH Regioselectivity: n/a Stereoselectivity: anti Rearrangement possible? no |
| Osmium Tetroxide | Add. Reagents: OsO4 What adds? -OH, -OH Regioselectivity: n/a Stereoselectivity: syn Rearrangement possible? no |
| KMnO4 (mild) | Add. Reagents: KMnO4 (mild) What adds? -OH, -OH Regioselectivity: n/a Stereoselectivity: syn Rearrangement possible? no |
| Ozonolysis | Add. Reagents: 1) O3, 2) DMS (or something else) What adds? n/a Regioselectivity: splits bond, turns into carbonyl Stereoselectivity: n/a Rearrangement possible? n/a |
| KMnO4 (vigorous) | Add. Reagents: KMnO4 (vigorous) What adds? n/a Regioselectivity: splits the bond Stereoselectivity: further oxidizes aldehydes Rearrangement possible? to COOH |