Journal ArticleDOI
Clay catalyzed rearrangement of substituted allyl phenyl ethers: Synthesis of ortho-allyl phenols, chromans and coumarans
TLDR
Montmorillonite clays catalyze the rearrangement of substituted allyl phenyl ethers to provide ortho-allyl phenols, chromans and coumarans under mild conditions as mentioned in this paper.About:
This article is published in Tetrahedron Letters.The article was published on 1990-01-01. It has received 66 citations till now.read more
Citations
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Journal ArticleDOI
Unusual Effects in the Pd-Catalyzed Asymmetric Allylic Alkylations: Synthesis of Chiral Chromans
TL;DR: The role of carboxylate appears to be a ligand to Pd during the catalytic cycle, a previously unsuspected phenomenon since such reactions are generally believed to involve pi-allylpalladium cationic complexes.
Journal ArticleDOI
Synthesis and antibacterial activity of chalcones bearing prenyl or geranyl groups from Angelica keiskei
TL;DR: Chalcones bearing prenyl or geranyl groups from Angelica keiskei, such as 4-hydroxyderricin (1a), xanthoangelol (1e), x-angelol F (1f), deoxyxanthol H (3), and deoxydihydroxantho-angelols H (4) and their derivatives were synthesized as discussed by the authors.
Book ChapterDOI
Clay Minerals as Catalysts
Richard W. McCabe,J.M. Adams +1 more
TL;DR: A review of the use of clay minerals and clay mineral nanocomposites as catalysts for reactions is given in this paper by considering the structural characteristics responsible for activity, specificity and selectivity.
Journal ArticleDOI
The [1, 3] O-to-C rearrangement: opportunities for stereoselective synthesis
TL;DR: This perspective analyzes the various methods used for the activation and [1, 3] rearrangement of vinyl ethers with an emphasis on mechanism and applications to stereoselective synthesis.
Journal ArticleDOI
Exploring chemical diversity of epoxyquinoid natural products: synthesis and biological activity of (-)-jesterone and related molecules.
Yongbo Hu,Chaomin Li,Bheemashankar A. Kulkarni,Gary A. Strobel,Emil Lobkovsky,Richard M. Torczynski,John A. Porco +6 more
TL;DR: Enantioselective syntheses of the potent antifungal agent (-)-jesterone, its hydroxy epimer, and a dimeric quinone epoxide derivative are reported.
References
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Journal ArticleDOI
Catalysis of organic reactions by inorganic solids
TL;DR: In this article, major advances have been made towards dcsign, realization, and optimization of efficient catalytic systems based on modified aluminosilicate mincrals, and a number of optimizations have been proposed.
Journal ArticleDOI
Clay-organic interactions
TL;DR: In this paper, the interaction of neutral organic compounds with mica-type layer silicates (2/1 clay minerals) is of quite different type, as illustrated for the interaction with nuclein bases, the adsorption can be strikingly dependent on the layer charge and the concentration of salts and co-adsorption phenomena.
Journal ArticleDOI
Clay-supported copper(II) and iron(III) nitrates: novel multi-purpose reagents for organic synthesis
Andre Cornelis,Pierre Laszlo +1 more
Journal ArticleDOI
Catalysis of Friedel‐Crafts Alkylation by a Montmorillonite Doped with Transition‐Metal Cations
Pierre Laszlo,Arthur Mathy +1 more
TL;DR: In this article, the interstitial cations in the K10 montmorillonite were exchanged to obtain catalysts for Friedel-Crafts alkylation with halides, alcohols, and olefins.