関連する実験動画

Updated: Sep 9, 2025

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
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パイラゾリンとピリミジンの持続的な多成分合成のための触媒

Prashant Kukreti1, Parth Datta1, Rahul Chauhan1

  • 1Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.

Chemistry, an Asian journal
|September 1, 2025
PubMed
まとめ

NNNピンチャー・コッパー (II) 触媒は,ピラゾリンとピリミディンの持続的な多成分合成を可能にします. このエコフレンドリーな方法は,受容体なしの脱水処理を利用し,水と水素のみを生成します.

キーワード:
1,3,5トリサブシテートピラゾリン (TriPyz)2,4,6-トリシブシテッドピリミジン (TriPym)アクセプターレス脱水 (AD)多成分合成 (MCS)

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Preparation of Nitriles01:12

Preparation of Nitriles

One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
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Preparation of 1° Amines: Azide Synthesis

Direct alkylation of ammonia produces polyalkylated amines, along with a quaternary ammonium salt. To exclusively prepare primary amines, the azide synthesis method can be used.
Azide ions act as good nucleophiles and react with unhindered alkyl halides to form alkyl azides. Alkyl azides do not participate in further nucleophilic substitution reactions, thereby eliminating the chances of polyalkylated products. Alkyl azides are reduced by hydride-based reducing agents, like lithium aluminum...
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Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
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