A Guidebook to Mechanism in Organic Chemistry
Carbonium Ions, Electron-deficient N and O Atoms Me I Me—C—CMe 2 I I OH OH H-Hy Me I -HaO Me—C—CMe 2 ~ " Me I U OH OH H 'Me 1 CM ...
The PinacoljPinacolone Rearrangement /Me\_ Me Me Me—C—C; -> Me—C—C-R -> Me—C—C—R I cHvR' K v II > OHTfeN O-J-H R' O R' ...
Carbonium Ions, Electron-deficient N and O Atoms it is the p-MeO-C 6 H 4 that migrates in preference to C 8 HB owing to the elec ...
Migration to Electron-deficient Nitrogen Atoms Ag.O H.O -N, RCH 2 C—OH RCH=C=0 In aqueous solution, the acid is obtained directl ...
Carbonium Ions, Electron-deficient N and O Atoms O—C—N—R (XXII) H.O HOaC—NH—R > 0 2 C+H 2 NR (XXIII) corresponds closely to t ...
The Beckmann Rearrangement O R-C-NHOH <- (XXV) eOH \ O II • R_C—OEt O O R-C-NHNH, NaNO^ o HQ (XXIV) 0=C=N—R derived from am ...
Carbonium Ions, Electron-deficient Nand O Atoms determines which of them in fact migrates. Thus it is found, in prac tice, to b ...
The Beckmann Rearrangement has been shown by rearrangement of benzophenone oxime to benzan- ilideinH 218 0: Ph Ph HO Ph O Ph \ / ...
Carbonium Ions, Electron-deficient N and O Atoms solvents in the absence of added catalysts. Also, the stronger the acid XOH, i. ...
Migration to Electron-Deficient Oxygen Atoms MIGRATION TO ELECTRON-DEFICIENT OXYGEN ATOMS It might reasonably be expected that s ...
Carbonium Ions, Electron-deficient N and O Atoms seems probable that the rearrangement occurs simultaneously with loss of the an ...
5 ELECTROPHILIC AND NUCLEOPHILIC SUBSTITUTION IN AROMATIC SYSTEMS REFERENCE has already been made to the structure of benzene an ...
Electrophilic and Nucleophilic Substitution in Aromatic Systems its formation and decomposition does not lead to the exchange of ...
Electrophilic Attack on Benzene addition compound, would no longer be aromatic with all that that implies. By expelling H®, i.e. ...
Electrophilic and Nucleophilic Substitution in Aromatic Systems*^9 NITRATION The aromatic substitution reaction that has receive ...
Nitration is thus explained for it contains but little ®N0 2 ; the small amount that is present is obtained by the two-stage pro ...
Electrophilic and Nucleophilic Substitution in Aromatic Systems OH OH OH OH (VI) (VII) (VIII) The*^Stroso-phenol (VII) so obtain ...
Halogenation After fission of the bromine-bromine bond in forming the a complex with benzene, the anionic complex, ®Br-FeBr 3 , ...
Electrophilic and Nucleophilic Substitution in Aromatic Systems In the absence of a catalyst and in the presence of light, chlor ...
Friedel-Crafts Reaction cold is generally used instead; the more rapid reaction is, of course, due to the concentration of free ...
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