Labile, Reactive Bis(imido)rhenium(V) Complexes

Ira A. Weinstock; Richard R. Schrock; Darryl S. Williams; William E. Crowe

doi:10.1021/om00047a001

Labile, Reactive Bis(imido)rhenium(V) Complexes

Ira A. Weinstock, Richard R. Schrock, Darryl S. Williams, William E. Crowe

Research output: Contribution to journal › Article › peer-review

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Abstract

Re(NAr)₂CI₃(py) (Ar = 2,6-C₆H₃-i-Pr₂) reacts with 1 equiv of zinc dust in the presence of excess pyridine in tetrahydrofuran to give red-brown microcrystalline Re(NAr)₂CI(py)₂ (1a) in 80% yield. Emerald green Re-(NAr)₂(CH₂-t-Bu)(py)₂ (2a) can be prepared by addition of 0.5 equiv of dineopentylzinc to 1a in dichloromethane or by reducing Re(NAr)₂(CH₂-t-Bu)Cl₂ in the presence of pyridine. Addition of 2-butyne to 1a or 2a gives complexes of the form Re(ArN)₂X(2-butyne) (X = CI, CH₂-t-Bu), while addition of acetone, pivaldehyde, or norbornene to 2a gives complexes of the form Re(NAr)₂(CH₂-t-Bu)(η²-ligand). Reduction of Re(NAr)₂(CH₂-t-Bu)Cl₂ in the presence of PMe₂Ph yields Re(NAr)₂(CH₂-t-Bu)(PMe₂Ph).

Original language	English
Pages (from-to)	1-2
Number of pages	2
Journal	Organometallics
Volume	10
Issue number	1
DOIs	https://doi.org/10.1021/om00047a001
State	Published - 1 Jan 1991
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "Labile, Reactive Bis(imido)rhenium(V) Complexes",

abstract = "Re(NAr)2CI3(py) (Ar = 2,6-C6H3-i-Pr2) reacts with 1 equiv of zinc dust in the presence of excess pyridine in tetrahydrofuran to give red-brown microcrystalline Re(NAr)2CI(py)2 (1a) in 80% yield. Emerald green Re-(NAr)2(CH2-t-Bu)(py)2 (2a) can be prepared by addition of 0.5 equiv of dineopentylzinc to 1a in dichloromethane or by reducing Re(NAr)2(CH2-t-Bu)Cl2 in the presence of pyridine. Addition of 2-butyne to 1a or 2a gives complexes of the form Re(ArN)2X(2-butyne) (X = CI, CH2-t-Bu), while addition of acetone, pivaldehyde, or norbornene to 2a gives complexes of the form Re(NAr)2(CH2-t-Bu)(η2-ligand). Reduction of Re(NAr)2(CH2-t-Bu)Cl2 in the presence of PMe2Ph yields Re(NAr)2(CH2-t-Bu)(PMe2Ph).",

author = "Weinstock, {Ira A.} and Schrock, {Richard R.} and Williams, {Darryl S.} and Crowe, {William E.}",

year = "1991",

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doi = "10.1021/om00047a001",

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journal = "Organometallics",

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T1 - Labile, Reactive Bis(imido)rhenium(V) Complexes

AU - Weinstock, Ira A.

AU - Schrock, Richard R.

AU - Williams, Darryl S.

AU - Crowe, William E.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Re(NAr)2CI3(py) (Ar = 2,6-C6H3-i-Pr2) reacts with 1 equiv of zinc dust in the presence of excess pyridine in tetrahydrofuran to give red-brown microcrystalline Re(NAr)2CI(py)2 (1a) in 80% yield. Emerald green Re-(NAr)2(CH2-t-Bu)(py)2 (2a) can be prepared by addition of 0.5 equiv of dineopentylzinc to 1a in dichloromethane or by reducing Re(NAr)2(CH2-t-Bu)Cl2 in the presence of pyridine. Addition of 2-butyne to 1a or 2a gives complexes of the form Re(ArN)2X(2-butyne) (X = CI, CH2-t-Bu), while addition of acetone, pivaldehyde, or norbornene to 2a gives complexes of the form Re(NAr)2(CH2-t-Bu)(η2-ligand). Reduction of Re(NAr)2(CH2-t-Bu)Cl2 in the presence of PMe2Ph yields Re(NAr)2(CH2-t-Bu)(PMe2Ph).

AB - Re(NAr)2CI3(py) (Ar = 2,6-C6H3-i-Pr2) reacts with 1 equiv of zinc dust in the presence of excess pyridine in tetrahydrofuran to give red-brown microcrystalline Re(NAr)2CI(py)2 (1a) in 80% yield. Emerald green Re-(NAr)2(CH2-t-Bu)(py)2 (2a) can be prepared by addition of 0.5 equiv of dineopentylzinc to 1a in dichloromethane or by reducing Re(NAr)2(CH2-t-Bu)Cl2 in the presence of pyridine. Addition of 2-butyne to 1a or 2a gives complexes of the form Re(ArN)2X(2-butyne) (X = CI, CH2-t-Bu), while addition of acetone, pivaldehyde, or norbornene to 2a gives complexes of the form Re(NAr)2(CH2-t-Bu)(η2-ligand). Reduction of Re(NAr)2(CH2-t-Bu)Cl2 in the presence of PMe2Ph yields Re(NAr)2(CH2-t-Bu)(PMe2Ph).

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DO - 10.1021/om00047a001

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Labile, Reactive Bis(imido)rhenium(V) Complexes

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