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2- Methyl-5-phenylazo

Arylazo-N-vinylpyrroles may act as ligands of palladium complexes exhibiting catalytic activity, for example, in Heck reaction [88]. So, 2-methyl-5-phenylazo-N-vinylpyrrole in combination with PdCl2 catalyzes almost quantitative formation of fi-stilbenes from arylbromides and styrene (Scheme 2.178). [Pg.284]

In warm mineral acid, formazans (195) rearrange to a benzotriazine (196) eliminating an amine (Scheme 29).8,26 27 334 338 339 H owever, when R is methyl, phenylazo, or oxalyl, the main product is the phenazine 197 along with a trace amount of the benzotriazine.340 The mechanism of this reaction is not well understood.341 345... [Pg.263]

Scheme 2. Synthesis of 4-(4-diethylamino-2-methyl-phenylazo)benzene sulfonyl fluoride... Scheme 2. Synthesis of 4-(4-diethylamino-2-methyl-phenylazo)benzene sulfonyl fluoride...
Fig. 3.133. Preparation of 4-fluorosulphonylaniline and synthesis of 4-(4-diethylamino-2-methyl-phenylazo)benzene sulphonyl fluoride. Reprinted with permission from J. Koh et al. [180]. Fig. 3.133. Preparation of 4-fluorosulphonylaniline and synthesis of 4-(4-diethylamino-2-methyl-phenylazo)benzene sulphonyl fluoride. Reprinted with permission from J. Koh et al. [180].
Hydroxy-5-methyl-phenylazo)-2.3,5,6-tetrafluor-pyridin 66% Schmp. 172-173°... [Pg.5]

Ethen 2-Chlor-1,2-dibrom-l-(2,6-dibrom-4-methyl-phenylazo)-E15/1, 949 (H/Cl -> Br2)... [Pg.567]

See other pages where 2- Methyl-5-phenylazo is mentioned: [Pg.989]    [Pg.9]    [Pg.18]    [Pg.40]    [Pg.42]    [Pg.42]    [Pg.42]    [Pg.45]    [Pg.45]    [Pg.45]    [Pg.50]    [Pg.50]    [Pg.57]    [Pg.77]    [Pg.77]    [Pg.79]    [Pg.79]    [Pg.79]    [Pg.80]    [Pg.83]    [Pg.84]    [Pg.86]    [Pg.88]   
See also in sourсe #XX -- [ Pg.57 ]



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2-[4- phenylazo

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