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CHM223 Exam 1

QuestionAnswer
Br with resonance sn2
substution only with sp3 c
Strong base, bad nuc. E2 LDA, -O-R, -C-R (except -CN)
Strong nuc, bad base Sn2 -CN, -N3, -X, carboxylate anion
Alkyne anion great base...E2
if both alkene products equally conj look if.. cis or trans (more stbale)
Strong nuc/base, 1 degree R-X, excluding bulky bases Sn2 major
Strong nuc AND base, 2 or 3 degree R-X E2 major (antiparaplanar)
Strong nuc and weak base, 2nd degree R-X Sn2 major
Strong nuc and weak base, 3 degree R-X No rxn
Weak nuc/base, 1 degree R-X NO rxn, except Br with resonance
Weak nuc/base, 2 and 3 degree R-X SN1/E1 compete (excpet H2So4)
t-butoxide can do SN2, but.. nto favorable
LDA can only do E2
Bulky bases only do E2
Created by: Slayy
 

 



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