49 items found

Tags: Cyclization

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  • dataset

    r37980778c78--c42a5732f3efb3d590b8b2bb483113e4

    The palladium-catalyzed domino cyclization of propargyl bromides having two nucleophilic functional groups is described. Treatment of 1,7-diamino-5-bromohept-3-yne derivatives...
  • dataset

    r37980778c78--988a9418bc163ebf9f0aca9f72da84f9

    Regiocontrolled synthesis of polysubstituted benzenes from silylated 1,3-dien-5-ynes has been achieved by using diisobutylaluminum hydride (DIBAL-H). Hydroalumination of the...
  • dataset

    Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical In...

    Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical Intermediates and the Isolation of Indolines
  • dataset

    Hydroalumination-Triggered Cyclization of Silylated 1,3-Dien-5-ynes to Polysu...

    Regiocontrolled synthesis of polysubstituted benzenes from silylated 1,3-dien-5-ynes has been achieved by using diisobutylaluminum hydride (DIBAL-H). Hydroalumination of the...
  • dataset

    r37980778c78--1608ffee9a3799dbd7315cb3a4af3147

    The thermal cyclization of 3,4-diphenylbuta-1,3-dienyl isocyanates 1, generated in situ from the corresponding azides, was investigated using iodine as a catalyst....
  • dataset

    r37980778c78--f74ccd77d74545b5ed5cc4d7a75d7b90

    Intramolecular samarium diiodide-induced carbonyl−alkene or carbonyl−alkyne coupling reactions afforded without high dilution conditions 9- and 10-membered benzannulated...
  • dataset

    r37980778c78--fe56903a158c743992e0cb74e4d9fc72

    A fascinating mechanistic study of ynamido−palladium−π-allyl complexes is described that features isolation of a unique silyl ketenimine via aza-Claisen rearrangement, which can...
  • publication

    r37980778c78--76e541e87b9387e7b8017fe10693ecdb

    The palladium-catalyzed domino cyclization of propargyl bromides having two nucleophilic functional groups is described. Treatment of 1,7-diamino-5-bromohept-3-yne derivatives...
  • publication

    r37980778c78--f604724a6275435b61fb9042f69feb3c

    α-2-Deoxy-d-glucose derived ether 14 is a superior reagent for the allene ether version of the Nazarov cyclization. Enantiomeric excesses of products derived from trisubstituted...
  • publication

    An Unusual Oxidative Cyclization:  Studies towards the Biomimetic Synthesis o...

    An unusual oxidative cyclization of a N-hydroxy pyridone 9 with Z-2-cyclodecenone 11 has been achieved, thus demonstrating a possible biomimetic route to pyridomacrolidin 2.
  • publication

    r37980778c78--697d5716b175b437c5735a3de521331e

    Bis Ring Closing Olefin Metathesis for the Synthesis of Unsaturated Polycyclic Ethers. O-Membered Ring Cyclization in Favor of C-Membered Ring Cyclization
  • publication

    r37980778c78--21db4a138797099307b41f267e7cea60

    Metal-Mediated Cyclization of Aryl and Benzyl Glycidyl Ethers: A Complete Scenario
  • publication

    Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical In...

    Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical Intermediates and the Isolation of Indolines
  • publication

    Metal-Mediated Cyclization of Aryl and Benzyl Glycidyl Ethers: A Complete Sce...

    Metal-Mediated Cyclization of Aryl and Benzyl Glycidyl Ethers: A Complete Scenario
  • publication

    Remarkable Tris(trimethylsilyl)silyl Group for Diastereoselective [2 + 2] Cyc...

    Diastereoselective [2 + 2] cyclizations of aldehyde- and ketone-derived silyl enol ethers with acrylates is described. The use of the tris(trimethylsilyl)silyl group allows for...
  • publication

    Diastereoselective Synthesis of Piperazines by Manganese-Mediated Reductive C...

    A simple and effective synthesis of trans aryl-substituted piperazines using a Brønsted acid and manganese(0) is described.
  • publication

    Triallylmanganate-Mediated Cyclization of Diyne, Enyne, and Diene. An Unprece...

    Treatment of diynes with triallylmanganate provided bicyclized products containing a seven-membered ring. N,N-Bis(2-nonynyl)benzylamine gave a mixture of...
  • publication

    r37980778c78--f280fb2544b7e7cf789c97d9ecbef676

    A fascinating mechanistic study of ynamido−palladium−π-allyl complexes is described that features isolation of a unique silyl ketenimine via aza-Claisen rearrangement, which can...
  • publication

    W(CO)<sub>5</sub>·THF-Catalyzed Endo-Selective Cyclization of ω-Acetylenic Si...

    W(CO)5·THF-Catalyzed Endo-Selective Cyclization of ω-Acetylenic Silyl Enol Ethers
  • publication

    Cyclization of Aryl Silanes with Unexpected Retention of Silicon

    Intramolecular Friedel−Crafts cyclization of 2-O-benzyl ethers at a model pyranose acetal is activated by incorporation of a trimethylsilyl group, albeit via unexpected,...