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C-Acyl group migration

Trifiuoroacetic acid O- C-Acyl group migration from hetero- to iso-cycles... [Pg.173]

Nitriles from enazides with C-acyl group migration... [Pg.134]

Medium-ring cyclic ketones via N- C-acyl group migration Q)... [Pg.145]

Ethylene derivs. from carboxylic acids via imidazole N- C-acyl group migration and Norrish type II cleavage Degradation with loss of 2 C-atoms... [Pg.532]

Without additional reagents S C-Acyl group migration with benzothiazoiine ring closure... [Pg.181]

Photochemical N C-acyl group migration y -Amino-a,y -ethyleneketones from enacylamines... [Pg.181]

When treated with acid chlorides and acid anhydrides, phenols form esters. Under Friedel-Crafts conditions, phenolic esters undergo a Fries rearrangement in which the acyl group migrates to the 2- and 4-positions. Thus, treatment of the ester 11 with aluminium chloride in an inert solvent gives a mixture of 2- and 4-hydroxyacetophenones [(hydroxy-phenyl)ethanones] C-acylation has occurred (Scheme 4.7). The two isomers are separable and this is a useful method for the production of phenolic ketones. The mechanism remains uncertain, but it would appear that the acylium ion (RCO" ) is generated and that a Friedel-Crafts mechanism operates. [Pg.51]

In some cases acyl group migration from the 1-position to the 2-position can be observed when the primary 1 -acyl derivative is heated above 120 °C (cf. 65AG414,65AG(E)417,66CB2512). [Pg.698]

Millqvist-Fureby, A., Virto, C., Adlercrentz, P, and Mattiasson, B., Acyl group migrations in 2-monoolein, Biocat. Biotrans., 14, 89-111, 1996. [Pg.216]

See other pages where C-Acyl group migration is mentioned: [Pg.446]    [Pg.255]    [Pg.268]    [Pg.208]    [Pg.433]    [Pg.516]    [Pg.233]    [Pg.472]    [Pg.472]    [Pg.238]    [Pg.446]    [Pg.255]    [Pg.268]    [Pg.208]    [Pg.433]    [Pg.516]    [Pg.233]    [Pg.472]    [Pg.472]    [Pg.238]    [Pg.101]    [Pg.95]    [Pg.308]    [Pg.295]    [Pg.295]    [Pg.4]    [Pg.482]    [Pg.679]    [Pg.679]    [Pg.679]    [Pg.585]    [Pg.3189]    [Pg.8]    [Pg.295]    [Pg.535]    [Pg.307]    [Pg.729]    [Pg.2336]    [Pg.249]    [Pg.452]    [Pg.56]    [Pg.433]   
See also in sourсe #XX -- [ Pg.26 , Pg.477 ]

See also in sourсe #XX -- [ Pg.26 , Pg.477 ]



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Acyl group

Acyl group acylation

Acyl migration

Acylation acyl migration

C-Acylation

Group migration

Migrating group

Migration acyl groups

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