Synthesis of novel chiral spiro bis(pyrazole) ligands

Shinobu Takizawa; Yuji Honda; Midori A. Arai; Takahiro Kato; Hiroaki Sasai

doi:10.3987/com-03-9874

Synthesis of novel chiral spiro bis(pyrazole) ligands

Shinobu Takizawa, Yuji Honda, Midori A. Arai, Takahiro Kato, Hiroaki Sasai

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

16 Citations (Scopus)

Abstract

The first synthesis of spiro bis(pyrazole) ligands, 2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1a) and 2,2'-dibenzyl-2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1b) was achieved. The application of spiro bis(pyrazole) ligand to asymmetric catalysis was also examined.

Original language	English
Pages (from-to)	2551-2556
Number of pages	6
Journal	Heterocycles
Volume	60
Issue number	11
DOIs	https://doi.org/10.3987/com-03-9874
Publication status	Published - 2003 Nov 1
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry
Pharmacology
Organic Chemistry

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title = "Synthesis of novel chiral spiro bis(pyrazole) ligands",

abstract = "The first synthesis of spiro bis(pyrazole) ligands, 2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1a) and 2,2'-dibenzyl-2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1b) was achieved. The application of spiro bis(pyrazole) ligand to asymmetric catalysis was also examined.",

author = "Shinobu Takizawa and Yuji Honda and Arai, {Midori A.} and Takahiro Kato and Hiroaki Sasai",

year = "2003",

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doi = "10.3987/com-03-9874",

language = "English",

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TY - JOUR

T1 - Synthesis of novel chiral spiro bis(pyrazole) ligands

AU - Takizawa, Shinobu

AU - Honda, Yuji

AU - Arai, Midori A.

AU - Kato, Takahiro

AU - Sasai, Hiroaki

PY - 2003/11/1

Y1 - 2003/11/1

N2 - The first synthesis of spiro bis(pyrazole) ligands, 2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1a) and 2,2'-dibenzyl-2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1b) was achieved. The application of spiro bis(pyrazole) ligand to asymmetric catalysis was also examined.

AB - The first synthesis of spiro bis(pyrazole) ligands, 2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1a) and 2,2'-dibenzyl-2,2',4,4'-tetrahydro-6,6'-spirobi[5H-cycopentapyrazole] (1b) was achieved. The application of spiro bis(pyrazole) ligand to asymmetric catalysis was also examined.

UR - http://www.scopus.com/inward/record.url?scp=0142090884&partnerID=8YFLogxK

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U2 - 10.3987/com-03-9874

DO - 10.3987/com-03-9874

M3 - Article

AN - SCOPUS:0142090884

SN - 0385-5414

VL - 60

SP - 2551

EP - 2556

JO - Heterocycles

JF - Heterocycles

IS - 11

ER -

Synthesis of novel chiral spiro bis(pyrazole) ligands

Abstract

ASJC Scopus subject areas

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