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19 Cards in this Set
- Front
- Back
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conjugated system
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pi bond systems connected by a single C-C single bond. Pi bonds parallel.
e.g. 1,3-butene |
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allyl carbocation
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-C-C=C+
stability through resonance 2e/3orbitals usually cause multiple products |
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equilibrium control
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most stable product will be major product
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kinetic control
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most easily formed product will be major product
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vinylic carbocation
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R-C(+)=C
less stable than alkyl C, makes alkynes more reactive than alkenes, about as stable as 1° C+ |
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enol
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vinylic alcohol, unstable
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enol-keto tautomerization
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enol stability < ketone stability
enols convert to ketones |
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hydride ion
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H+, nucleophile
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9BBN
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9-borabicyclo(3,3,1)nonane
bulky, prevents 2nd and 3rd borations |
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t-butic (sp?) acid
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look up
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terminal alkyne acidity
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sp hybridized C is more electronegative, and more stable due to 50% s-character
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period/basicity relationship
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basicity increases going left
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THF
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tetrahydrofuran
IUPAC=oxacyclopentane solvent for: hydroboration, |
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carbene
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carbon radical with two R's single bonded
sp2 hybridized |
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epoxide (oxirane)
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has highly strained C,C,O ring
fromed from alkenes and peroxyacid |
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peroxyacid
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RCO3H
like carboxylic acid with extra O between the O-H |
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AIBN
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radical initiator
azo bis isobutyrylnitrile |
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LDA
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look up
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azo compound
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contains R-C-N=N-C-R
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