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Updated: Jun 5, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
09:45

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

カチオンのアルキアルミニウム複合体ジルコノセンの水化物:NMR光譜による識別,結晶構造の決定,および他のジルコノセンのカチオンとの相互変換

Steven M Baldwin1, John E Bercaw, Lawrence M Henling

  • 1Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States.

Journal of the American Chemical Society
|January 20, 2011
PubMed
まとめ

ジルコノセーン二塩化物複合体は,アルミニウムアルキルと反応して,新種のカチオンの水化物種を形成する. これらの種はオレフィンポリメリゼーション触媒に関与しており,触媒システムにおけるその重要性を強調しています.

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Electrophilic Addition to Alkynes: Halogenation

Introduction
Halogenation is another class of electrophilic addition reactions where a halogen molecule gets added across a π bond. In alkynes, the presence of two π bonds allows for the addition of two equivalents of halogens (bromine or chlorine). The addition of the first halogen molecule forms a trans-dihaloalkene as the major product and the cis isomer as the minor product. Subsequent addition of the second equivalent yields the tetrahalide.
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Structural Isomerism

Isomerism in Complexes
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Ionic Crystal Structures

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Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism

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