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CHEM 241A: EXAM 3
Hydoboration Oxidation has what kind of addition?
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Syn Addition
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Adding X2 an Alkene has what kind of addition?
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Anti Addition
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H2 and Lindlard's Catalyst
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Turns alkyne to a Cis alkene- "Sisters lie"
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H2 and Pt-C
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Turns an alkyne to an alkane- "Poof!"
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Li/NH3 and Na/ND3
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Turns an alkyne to a trans alkene
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BH3/AcOH
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turns an alkyne to a cis alkene
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LAH and NaBH4
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Used as hydride reducing agents H has a negative charge and attacks, then a proton is delivered to form H2O or an alcohol (Markovinkov alcohol)
*Used to open epoxide rings to form alcohols
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LAD
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Strong Base- usually attacks a hydrogen
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DMSO
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the oxygen is usually used to attack a hydrogen
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SOCl2 and PCl3 come with
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pyridine |
POCl3 is used to make
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an alkene from an alcohol- dehydration of an alcohol (without rearrangement)
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SOCl2 and PCl3
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conversion of alcohols to alkyl chlorides or bromides
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Addition of HX to an alkene results in
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syn and anti addition to make an alkane with H and X
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Addition of water and H2SO4 to an alkene results in
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syn and anti addition to make an alkane(alcohol) with H and OH
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X2 and H20 to an alkene results in
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an alkane with X and OH added in anti addition
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Hydroboration oxidation of Internal Alkenes results in
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Ketone (C=0 with a C on the other C)
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Hydroboration oxidation of Terminal Alkenes results in
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Aldehyde (C=O with an H on the other C)
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NBS and NCS
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Souce of Br2 and Cl2
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CHCL3 + KOH
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turns double bond into a triangle with two chlorines coming off of it
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CH2I2 + Zn + Hg
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turns double bond into a triangle
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tert-butyl group
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Carbon with three methyl groups
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sec-butyl group
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carbon with a methyl group, ethyl group and H
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ethylene group
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CH2=CH2
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isopropyl |
Carbon with two methyl groups and a H
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methylene group
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$=CH2
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vinyl group
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CH2=CH$
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allyl group
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CH2=CCH2$
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phenyl group
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R-Benzene ring
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sp3 C on NMR
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chemical shift ~0.9-2ppm
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z=C-C-H on NMR
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chemical shift ~1.5-2.5ppm
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CtriplebondC on NMR
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~2.5 ppm
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sp3 C-Z on NMR
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~2.5-4 ppm
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C=C on NMR
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4.5-6 ppm
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Benzene ring on NMR
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6.5-8 ppm
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C=O on NMR
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9-10 ppm
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OH-C=O on NMR
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10-12 ppm
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RO-H or R-N-H on NMR
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1-5 ppm
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