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Literature DB >> 16508694

Reactions of Imines with Azazirconacyclobutenes and Generation of Electron-Deficient Imidozirconocene Complexes.

Abstract

Electron-deficient imines are shown to insert into the zirconium-carbon bond of azazirconacyclobutenes to generate new six-membered ring metallacycles. On heating, these expanded zirconacycles undergo a retro-[4 + 2] cycloaddition to generate alpha,beta-unsaturated imines in excellent yields and novel, fully characterized electron-deficient imidozirconocene complexes.

Entities: Chemical

Year: 2004 PMID： 16508694 PMCID： PMC1383655 DOI： 10.1021/om0497994

Source DB: PubMed Journal: Organometallics ISSN： 0276-7333 Impact factor: 3.876

4 in total

1. Facile, Novel Methodology for the Synthesis of Spiro

Authors:
Journal: Angew Chem Int Ed Engl Date: 1999-11-02 Impact factor: 15.336

2. Reactivity of Zirconocene Azametallacyclobutenes: Insertion of Aldehydes, Carbon Monoxide, and Formation of alpha,beta-Unsaturated Imines. Formation and Trapping of [Cp(2)Zr=O] in a [4 + 2] Retrocycloaddition(1).

Authors: Tracy A. Hanna; Anne M. Baranger; Robert G. Bergman
Journal: J Org Chem Date: 1996-07-12 Impact factor: 4.354

3. Synthesis, Spectroscopic Properties, and Reactivities of Bis(tosylimido)osmium(VI) Porphyrin Complexes. X-ray Crystal Structure of [Os(VI)(TPP)(NSO(2)C(6)H(4)-pCH(3))(2)] (TPP = Tetraphenylporphyrinato).

Authors: Sze-Man Au; Wai-Hong Fung; Jie-Sheng Huang; Kung-Kai Cheung; Chi-Ming Che
Journal: Inorg Chem Date: 1998-12-28 Impact factor: 5.165

4. The First Catalytic Asymmetric Nitro-Mannich-Type Reaction Promoted by a New Heterobimetallic Complex.

Authors:
Journal: Angew Chem Int Ed Engl Date: 1999-12-03 Impact factor: 15.336

4 in total

5 in total

5. Reactivity of terminal imido complexes of group 4-6 metals: stoichiometric and catalytic reactions involving cycloaddition with unsaturated organic molecules.

Authors: Kento Kawakita; Yuya Kakiuchi; Hayato Tsurugi; Kazushi Mashima; Bernard F Parker; John Arnold; Ian A Tonks
Journal: Coord Chem Rev Date: 2020-01-14 Impact factor: 22.315

5 in total

Reactions of Imines with Azazirconacyclobutenes and Generation of Electron-Deficient Imidozirconocene Complexes.

1. Facile, Novel Methodology for the Synthesis of Spiro

2. Reactivity of Zirconocene Azametallacyclobutenes: Insertion of Aldehydes, Carbon Monoxide, and Formation of alpha,beta-Unsaturated Imines. Formation and Trapping of [Cp(2)Zr=O] in a [4 + 2] Retrocycloaddition(1).

3. Synthesis, Spectroscopic Properties, and Reactivities of Bis(tosylimido)osmium(VI) Porphyrin Complexes. X-ray Crystal Structure of [Os(VI)(TPP)(NSO(2)C(6)H(4)-pCH(3))(2)] (TPP = Tetraphenylporphyrinato).

4. The First Catalytic Asymmetric Nitro-Mannich-Type Reaction Promoted by a New Heterobimetallic Complex.

1. Carboamination: additions of imine C=N bonds across alkynes catalyzed by imidozirconium complexes.

2. Zirconium-mediated conversion of amides to nitriles: a surprising additive effect.

3. Ti-Catalyzed Multicomponent Oxidative Carboamination of Alkynes with Alkenes and Diazenes.

4. Ti-Catalyzed and -Mediated Oxidative Amination Reactions.

5. Reactivity of terminal imido complexes of group 4-6 metals: stoichiometric and catalytic reactions involving cycloaddition with unsaturated organic molecules.