Advanced Organic Chemistry: Reactions and synthesisPlenum Press, 1990 - Chemistry, Organic |
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Page 65
... anti The greater stability of the anti isomer is attributed to the psuedoequatorial position of the methyl group in the chairlike chelate . With larger substituent groups , the thermodynamic preference for the anti isomer is still ...
... anti The greater stability of the anti isomer is attributed to the psuedoequatorial position of the methyl group in the chairlike chelate . With larger substituent groups , the thermodynamic preference for the anti isomer is still ...
Page 169
... anti . " The addition of hydrogen chloride to 1 - methylcyclopentene is entirely anti when carried out at 25 ° C in nitromethane . " 169 SECTION 4.1 . ADDITION OF HYDROGEN HALIDES D Me Me Cl D D H D 1,2 - Dimethylcyclohexene is an ...
... anti . " The addition of hydrogen chloride to 1 - methylcyclopentene is entirely anti when carried out at 25 ° C in nitromethane . " 169 SECTION 4.1 . ADDITION OF HYDROGEN HALIDES D Me Me Cl D D H D 1,2 - Dimethylcyclohexene is an ...
Page 175
... anti addition is opposed by both steric ( difficulty of endo approach ) and torsional ( prohibition of an anti - periplanar transition state ) factors , reacts by syn - exo addition . 1 ) Hg ( CIO4 ) 2 2 ) H2O , CI OH HgCl Ref . 22 The ...
... anti addition is opposed by both steric ( difficulty of endo approach ) and torsional ( prohibition of an anti - periplanar transition state ) factors , reacts by syn - exo addition . 1 ) Hg ( CIO4 ) 2 2 ) H2O , CI OH HgCl Ref . 22 The ...
Contents
Alkylation of Nucleophilic Carbon Enolates and Enamines | 1 |
CONTENTS | 3 |
Polar Addition and Elimination Reactions | 6 |
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acetic acyl adduct alcohols aldehydes alkenes alkyl allylic amines anion aromatic aryl boron bromide C=C H C₂H carbanions carbon carbonyl carbonyl compounds carbonyl group carboxylic acids catalyst CH,O CH₂ CH₂OH CH3 CH CHAPTER 6 CYCLOADDITIONS Chem chiral chloride Claisen rearrangement CO,CH CO₂C₂H CO₂H cyclic cycloaddition reactions Diels-Alder reactions diene dienophile double bond E. J. Corey electron electrophilic ENAMINES enantioselectivity enol ether epoxides esters examples formation FUNCTIONAL GROUPS give Grignard reagents H CH H H H H H,C H,C CH H,C H,C H. C. Brown H₁C H₂ H₂C H₂O halides halogen hydride hydrogen hydroxyl intermediate intramolecular ketones Lewis acid lithium mechanism methyl molecules n-BuLi organoboranes organolithium organometallic oxidation oxygen Ph Ph PhCH₂O proton radical react reaction conditions REACTIONS INVOLVING reactive ring Scheme SECTION solvents step stereochemistry stereoselectivity steric structure Synth synthesis synthetic Tetrahedron Lett THERMAL ELIMINATIONS transition metal UNIMOLECULAR REARRANGEMENTS ylides