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Rieche

While the Friedel-Crafts acylation is a general method for the preparation of aryl ketones, and of wide scope, there is no equivalently versatile reaction for the preparation of aryl aldehydes. There are various formylation procedures known, each of limited scope. In addition to the reactions outlined above, there is the Vdsmeier reaction, the Reimer-Tiemann reaction, and the Rieche formylation reaction The latter is the reaction of aromatic compounds with 1,1-dichloromethyl ether as formylating agent in the presence of a Lewis acid catalyst. This procedure has recently gained much importance. [Pg.135]

Riech-. smelling, scented, odoriferous olfactory. -bein, n. (Anat.) ethmoid, riechen, v.i. t. smell. — — nach, smell of. — riechend, p.a, smelling, redolent, strong, fragrant. [Pg.366]

Riech-essig, m. aromatic vinegar, -fi ch-chen, n, smelling bottle, -mlttel, n, scent. [Pg.366]

H Gross, A Rieche, E Hoft, and E Beyer, this volume, p 47... [Pg.3]

Edwin M Kaiser William G Kenyon R A Klein C Konig A Paul Krapcho Stephen J Kuhn William C Kuryla Peter A Leermakers Robert L Letsinger Guy S Lougheed B J Magerlein R J L Martin John G Moefatt D Nasipuri George A Olah D E Pearson R J Petersen G Ploss J Posner A Rieche... [Pg.147]

Prepn is by reacting P2Os with formaldehyde dissolved in eth at RT for more than several days. Evapn of the eth leaves the prod as a non-vol oil. The compd is extremely expl it detonates readily on being warmed in a test tube Refs 1) Beil, not found 2) J.F. Walker, Formaldehyde", Reinhold, NY (1944), 128 3) A. Rieche R. Meister, Ber 66,720 (1933) CA 27, 3447(1933)... [Pg.685]

See other pages where Rieche is mentioned: [Pg.320]    [Pg.327]    [Pg.376]    [Pg.510]    [Pg.567]    [Pg.508]    [Pg.137]    [Pg.172]    [Pg.68]    [Pg.408]    [Pg.424]    [Pg.391]    [Pg.310]    [Pg.462]    [Pg.462]    [Pg.489]    [Pg.115]    [Pg.423]    [Pg.457]    [Pg.416]    [Pg.274]    [Pg.439]    [Pg.135]    [Pg.64]    [Pg.208]    [Pg.3]    [Pg.3]    [Pg.49]    [Pg.49]    [Pg.49]    [Pg.49]    [Pg.49]    [Pg.49]    [Pg.49]    [Pg.294]    [Pg.473]    [Pg.473]    [Pg.684]    [Pg.685]    [Pg.685]    [Pg.686]    [Pg.357]    [Pg.857]   
See also in sourсe #XX -- [ Pg.271 ]



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Rieche conditions

Rieche formylation

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