Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes

Kimihiko Sato; Yasushi Nishihara; Shouquan Huo; Zhenfeng Xi; Tamotsu Takahashi

doi:10.1016/S0022-328X(01)01072-5

Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes

Kimihiko Sato, Yasushi Nishihara, Shouquan Huo, Zhenfeng Xi, Tamotsu Takahashi

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

30 Citations (Scopus)

Abstract

A combination of Cp₂TiCl₂-2EtMgBr was found to be very effective for the formation of monocyclic titanacyclopentenes in excellent yields. On the other hand, a combination of Cp₂TiCl₂-2n-BuLi was used for intermolecular coupling of two alkynes to form titanacyclopentadienes in good to excellent yields. A reaction temperature range from -10 to -30°C was critical for the success of the combinations. Reactions of these in situ-prepared titanacycles show interesting similarities to or differences from their zirconacycle analogs.

Original language	English
Pages (from-to)	18-26
Number of pages	9
Journal	Journal of Organometallic Chemistry
Volume	633
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-328X(01)01072-5
Publication status	Published - Aug 10 2001
Externally published	Yes

Keywords

Intermolecular coupling
Titanacyclopentadiene
Titanacyclopentene
Titanocene-ethylene complex

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/S0022-328X(01)01072-5

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title = "Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes",

abstract = "A combination of Cp2TiCl2-2EtMgBr was found to be very effective for the formation of monocyclic titanacyclopentenes in excellent yields. On the other hand, a combination of Cp2TiCl2-2n-BuLi was used for intermolecular coupling of two alkynes to form titanacyclopentadienes in good to excellent yields. A reaction temperature range from -10 to -30°C was critical for the success of the combinations. Reactions of these in situ-prepared titanacycles show interesting similarities to or differences from their zirconacycle analogs.",

keywords = "Intermolecular coupling, Titanacyclopentadiene, Titanacyclopentene, Titanocene-ethylene complex",

author = "Kimihiko Sato and Yasushi Nishihara and Shouquan Huo and Zhenfeng Xi and Tamotsu Takahashi",

note = "Funding Information: A part of this work was supported by the Ministry of Education, Science, Sport and Culture, Japan. ZX thanks the National Natural Science Foundation of China (29702001) and the National Science Fund for Distinguished Young Scholars (29825105) for financial support of a part of this work. The authors appreciate Xuechuan Hong for his experiment. ",

year = "2001",

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doi = "10.1016/S0022-328X(01)01072-5",

language = "English",

volume = "633",

pages = "18--26",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

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TY - JOUR

T1 - Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes

AU - Sato, Kimihiko

AU - Nishihara, Yasushi

AU - Huo, Shouquan

AU - Xi, Zhenfeng

AU - Takahashi, Tamotsu

N1 - Funding Information: A part of this work was supported by the Ministry of Education, Science, Sport and Culture, Japan. ZX thanks the National Natural Science Foundation of China (29702001) and the National Science Fund for Distinguished Young Scholars (29825105) for financial support of a part of this work. The authors appreciate Xuechuan Hong for his experiment.

PY - 2001/8/10

Y1 - 2001/8/10

N2 - A combination of Cp2TiCl2-2EtMgBr was found to be very effective for the formation of monocyclic titanacyclopentenes in excellent yields. On the other hand, a combination of Cp2TiCl2-2n-BuLi was used for intermolecular coupling of two alkynes to form titanacyclopentadienes in good to excellent yields. A reaction temperature range from -10 to -30°C was critical for the success of the combinations. Reactions of these in situ-prepared titanacycles show interesting similarities to or differences from their zirconacycle analogs.

AB - A combination of Cp2TiCl2-2EtMgBr was found to be very effective for the formation of monocyclic titanacyclopentenes in excellent yields. On the other hand, a combination of Cp2TiCl2-2n-BuLi was used for intermolecular coupling of two alkynes to form titanacyclopentadienes in good to excellent yields. A reaction temperature range from -10 to -30°C was critical for the success of the combinations. Reactions of these in situ-prepared titanacycles show interesting similarities to or differences from their zirconacycle analogs.

KW - Intermolecular coupling

KW - Titanacyclopentadiene

KW - Titanacyclopentene

KW - Titanocene-ethylene complex

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VL - 633

SP - 18

EP - 26

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

IS - 1-2

ER -

Preparation and reactions of monocyclic bis(cyclopentadienyl)titanacyclopentenes and -pentadienes

Abstract

Keywords

ASJC Scopus subject areas

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