Shorter and Easier Syntheses of Di??tert??butylketene and Related gem??Di??tert??butyl Compounds

R Knorr, KO Hennig, B Schubert…

Index: Knorr, Rudolf; Hennig, Karsten-Olaf; Schubert, Bernhard; Boehrer, Petra European Journal of Organic Chemistry, 2010 , # 34 p. 6651 - 6664

Full Text: HTML

Citation Number: 1

Abstract

Abstract The ketene tBu 2 C= C= O is prepared from tBu 2 C= O in three steps (performable as a two-stage operation) through elimination of HCl from the intermediate product tBu 2 CCl– CH= O. The acid tBu 2 CH–CO 2 H, obtainable in two, three, or four preparative stages from tBu 2 C= O, adds slowly to the ketene to produce the anhydride (tBu 2 CH–CO) 2 O. Elemental lithium together with ClSiMe 3 converts tBu 2 CCl–CH= O into tBu 2 C= CH– ...

Related Articles:

Eine neue, einfache Synthese von Di-t-butylketen

[Hofmann, Peter; Perez Moya, Luis A.; Kain, Irene Synthesis, 1986 , # 1 p. 43 - 44]

Ultrasound-Assisted Preparation of Di-tert-Butyl-, Di-1, 1′ Adamantyl-and (1-Adamantyl)-tert-Butylketenes

[Olah, George A.; Wu, An-hsiang; Farooq, Omar Synthesis, 1989 , # 7 p. 566 - 567]

Ultrasound-Assisted Preparation of Di-tert-Butyl-, Di-1, 1′ Adamantyl-and (1-Adamantyl)-tert-Butylketenes

[Olah, George A.; Wu, An-hsiang; Farooq, Omar Synthesis, 1989 , # 7 p. 566 - 567]

Eine neue, einfache Synthese von Di-t-butylketen

[Hofmann, Peter; Perez Moya, Luis A.; Kain, Irene Synthesis, 1986 , # 1 p. 43 - 44]

The Synthesis and Some Reactions of Di-t-butylacetic Acid and Di-t-butylketene1

[Newman,M.S. et al. Journal of the American Chemical Society, 1960 , vol. 82, p. 2498 - 2501]

More Articles...