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SO3H-Functionalized Silica for Acetalization of Carbonyl Compounds with Methanol and Tetrahydropyranylation of Alcohols.

โœ Scribed by Ken-ichi Shimizu; Eidai Hayashi; Tsuyoshi Hatamachi; Tatsuya Kodama; Yoshie Kitayama


Publisher
John Wiley and Sons
Year
2004
Weight
25 KB
Volume
35
Category
Article
ISSN
0931-7597

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Homogeneous catalysis. Use of the [TiCp2
โœ T.Keith Hollis; N.P. Robinson; John Whelan; B. Bosnich ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 297 KB

## The effectiveness of the [TiCp2(CF$O3)2] catalyst for the Sakurai reaction has been exploredfor a variety of allylic silanes reacting with orthoesters, ace&, ketals, aldehydes and ketones. The Sakurai reaction (eqs 1.2) is promoted by a variety of Lewis acid@ including TiQ, Alc13, BF3, MesSi R'