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Universities » Xavier University of Louisiana (.. » CHEM - Chemistry » 2210 - Organic Chemistry I » Flash Cards

Substitution Reactions - Flashcards

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Class:CHEM 2210 - Organic Chemistry I
Subject:Chemistry
University:Xavier University of Louisiana
Term:Fall 2009
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Zn, H+ --------> Alkyl Halide Reduction Zinc Removes the Halogen R-X + Zn + H-X ----> R-H + ZnX2 (acid)
boiling ∆” 2° or 3° R-O-H + H-X --------> Alcohols React w/ Hydrogen Halides to form Alkyl Halides Preparation Hydrogen Halide Na-X + H2SO4 ----> H-X + NaHSO4 Reaction H-X + 2° or 3° R-O-H ----> R-X + H2O -HX protonates the hydroxyl -H2O leaves -X takes it's place
NaNH2 R-C≡C-H ------> R'X Alkylation of an Alkyne NaNH2 R-C≡C-H ------> R-C≡C-R' R'X
3R-O-H + PBr----> R-O-H + SOCl2----> Reaction of Alcohols with PBr2 and SOCl2 *NO REARRANGEMENT *INVERSION
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 Zn, H+ -------->Alkyl Halide Reduction
Zinc Removes the Halogen
R-X + Zn + H-X ----> R-H + ZnX2
(acid)
 boiling ∆” 2° or 3° R-O-H + H-X -------->Alcohols React w/ Hydrogen Halides to form Alkyl Halides
Preparation Hydrogen Halide
Na-X + H2SO4 ----> H-X + NaHSO4

Reaction
H-X + 2° or 3° R-O-H ----> R-X + H2O
-HX protonates the hydroxyl
-H2O leaves
-X takes it's place
 NaNH2 R-C≡C-H ------> R'XAlkylation of an Alkyne

NaNH2
R-C≡C-H ------> R-C≡C-R'
R'X
 3R-O-H + PBr----> R-O-H + SOCl2---->Reaction of Alcohols with PBr2 and SOCl2
*NO REARRANGEMENT
*INVERSION
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