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In order to create an alkene via E2 reaction, the H and the X must be ____ to one another
anti
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in an E2 reaction, ___ and ___ ___ ____ halides give good yields
tertiary and hindered secondary
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in an E2 reaction,use a _____ base if the alkyl halide usually forms substitution products in order to avoid substitution
bulky
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You should use a bulky base in an ___ reaction if the alkyl halide usually forms usbstitution products
E2
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In an E2 reaction, a molecule that has an (S, R) conformation produces ...
In an E2 reaction, a molecule that has an (S, R) conformation produces only a trans product
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In an E2 reaction, a molecule that has an (R,R) conformation produces...
In an E2 reaction, a molecule that has an (R,R) conformation produces only cis
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In an E2 reaction in which a cyclohexane is the substrate, the leaving groups must be ___ ____
trans diaxial
Ex.
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What reagent/solvent mixture must you use for an E2 reaction involving viinal dibromides?
use NaI in cetone or Zn in acetic acid
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what is a vicinal dibromide?
a vicinal dibromide is a molecule that contains two carbons that are adjacent to one another each of which are bonded to 1 bromine atom.
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What occurs during a vicinal dibromide E2 reaction?
Two Br atoms are removed from adjacent carbons to form Br2
Ex.
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In order for a a vicinal dibromide E2 reaction to occur, the Bromines must be arranged how in respect to each other
they must be arranged anti-coplanar
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