The Few-doped acidic KlO clay accelerates greatly, by factors of 105-106, tbetitle reaction. These rearrangements thus occur in a fewminutes atrocnntenperature, according to [1,21 and [3,31 pathways. FACIIE s-try-allowed pericyclic reactions --such as Diels-Alder cycloadditions, Claisen andCoperearr
Lewis acid catalysis of the rearrangement of a dipalladium acetylene adduct to a vinylidene-bridged complex
β Scribed by Kluwe, Constanze; Davies, Julian A.
- Book ID
- 127012403
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 715 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0276-7333
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Ease of generation, stablity in solution at ambient temperature, high enantioselectivity in Diels-Alder reactions, efficient catalyst recovery, and large rate differences on variation of the anion are all characteristics of the new Ru Lewis acid [CpRu((S,S)-biphop-F)] (biphop-F=(C F ) POCH (Ph)CH (P
Because Lewis acids are extraordinarily versatile catalysts,['] a great deal of effort has been devoted to the development of chiral Lewis acid catalysts.['. 31 Defining the conformation about the dative bond between substrate and Lewis acid is one of the im-