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Vocab & Misc. (Ch.4-6)
Vocabulary
18
Organic Chemistry
Undergraduate 3
11/13/2009

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Term
Meso Compound
Definition
-Has asymmetric center(s)
-Achiral
-Optically inactive
-Plane of Symmetry, no enantiomers
Term
Regioselective
Definition
When 2 constitutional isomers can be obtained as products, but more of ONE is created than the other.
Term
Stereoselective
Definition
Preferential formation of a stereoisomer rather than a constitutional isomer
Term
Stereospecific
Definition
Each stereoisomer forms a different stereoisomeric product/set of stereoisomeric producs.
Term
Syn addition
Definition
When 2 substituents add to the SAME side of a double bond.
Term
Anti addition
Definition
When 2 substituents add to OPPOSITE sides of a double bond.
Term
Alkyne
Definition
Hydrocarbon with a carbon-carbon TRIPLE bond.
-4 fewer hydrogens than an alkane.
Term
Molecular formula for an ALKANE
Definition
C'n' H'2n+2'
Term
Molecular formula for ACYCLIC ALKYNE
Definition
C'n' H'2n-2'
Term
Molecular formula for CYCLIC ALKYNE
Definition
C'n' H'2n-4'
Term
Terminal Alyne
Definition
Triple bond is at the end of the chain.
Term
Internal Alkyne
Definition
Triple bonds located anywhere but the ends of the carbon chain.
Term
Propargyl Group
(alkynes)
Definition
HC(triplebond)CCH2
Term
Ending "-DIYNE"
Definition
Compound with 2 TRIPLE bonds
Term
Ending "-DIENE"
Definition
Compound with 2 DOUBLE bonds
Term
Geminal Dihalide
Definition
A molecule with 2 halogens on the same carbon
Term
The Solvent is CH2Cl2
Definition
Halogens Cl2 and Br2 add to alkynes. With excess halogen, a 2nd addition rxn occurs. WITH THIS SOLVENT...
Term
Enol
Definition
Compound with a carbon-carbon double bond and an OH group bonded to one of the sp2 carbons
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