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Exam 2: Mechanisms
Chapters 8,9,10 mechanisms
Answer | |
---|---|
What reagent cleaves a terminal alkene into a carboxylic acid (0=C-OH) and a carbon dioxide molecule? (2 answers) | KMnO4, H30+ |
What reagents (two options) cleave an internal alkene into two disubstituted carbonyl groups? | O3, Zn/H3O+ or KMnO4, H30+ |
What 2 reagent adds X2 into an alkene? | X2, CH2Cl2 |
What 2 reagents add alkyl substituents onto an alkyne? | RCH2Br and NaNH2 |
What 3 reagents convert an alkene into a cyclopropane? | CH2I2, Zn(Cu)in Ether |
What 2 reagents add H2O to an alkene? (trans and w/ Markovnikov regiochemistry) | 1. Hg(OAc2), H2O/THF 2. NaBH4 |
What 3 reagents convert a terminal alkene into a methyl ketone? | H2SO4, H2O HgSO4 |
What two reagents convert a hydrohalide alkane or alkene into alkynes? | Strong Base (KOH) in ethanol |
What reagents turn an alkyne or alkene into a halogenated alkene or alkane? Hint: NOT IN ETHER | X2 in CCH2Cl2 |
What 2 reagents convert an alkene into a dichlorinated cyclopropane? | CHCl3, KOH |
What 2 reagents convert a 1,2 diol into two carbonyl groups? | HIO4,H20 |
What reagent converts an alkene into an epoxide? | Peroxyacid (RC=0OOH) |
What 2 reagents converts an alkyne into an aldehyde? (O=C-H) | 1.BH3 2.H2O2 |
What reagent converts an alkene into a 1,2 diol? | 1.OsO4 2.NaHSO3, H2O |
What 2 reagents convert an alkyne into a partially hydrogenated cis alkene? | H2, Lindlar |
What 4 reagents add a H2O to an alkene? (anti-markovnikov, cis) | 1.BH3,THF 2.H2O2, OH- *cis b/c of boron |
What 2 reagents add HX to an alkene? | HX in Ether |
What 2 reagents convert an alkyne into a trans alkene? | Li, NH3 |
What two reagents convert an alkyne into a hydrogenated cis alkene? | H2, Lindlar catalyst |
What reagent converts an epoxide into a trans diol? | Strong Acid, H3O+ |
What 2 reagents convert an alkyne into a trans alkene? | Li, NH3 |
What 3 reagents convert an alkene into a 1,2 diol? Hint: Weird One | 1.OsO4 2. NaHSO3, H2O |
What two reagents convert an alkyne into an aldehyde? (O=C-H) | 1.BH3 2.H2O2 |
What 2 reagents cleave a 1,2 diol into two carbonyl groups? | HIO4 H2O |
What 2 reagents add a halogen and an alcohol group to an alkene? | X2, H2O |
What 4 reagents add H2O into an alkene? (anti-markovnikov regiochem and cis) | 1.BH3, THF 2. H2O2, OH- |
What 2 reagents convert an alkyne into a halogenated and hydrogenated alkene or alkane? | HX in Ether |
What two reagents create alkynes from hydrogenated and halogenated alkanes or alkenes? | Strong Base (KOH) in Ethanol |
What two reagents completely hydrogenate an alkyne? | H2, Pd/C |
What 2 reagents fully halogenate an alkyne? | X2, CH2Cl2 |
What 2 reagents convert an alkyne into a methyl ketone? (O=C-CH3) | H2SO4, H2O HgSO4 |