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Published on: April 15, 2013
Alcohol-alcohol cross-coupling enabled by SH2 radical sorting
Ruizhe Chen1, Nicholas E Intermaggio1, Jiaxin Xie1
1Merck Center for Catalysis at Princeton University, Princeton, NJ 08544, USA.
This study introduces a novel nickel-catalyzed method for directly coupling two alcohols into a single molecule. This efficient process simplifies the creation of complex carbon structures from readily available alcohol building blocks.
Area of Science:
- Organic Chemistry
- Catalysis
- Synthetic Methodology
Background:
- Alcohols are abundant and versatile building blocks in organic synthesis.
- Forming carbon-carbon bonds from alcohols is crucial for exploring chemical diversity.
- Existing methods often require multiple steps or specific alcohol types.
Purpose of the Study:
- To develop a direct cross-coupling method for two alcohol molecules.
- To enable the formation of C(sp3)-C(sp3) bonds using a single activation strategy.
- To achieve efficient synthesis of diverse molecular structures from alcohols.
Main Methods:
- Nickel-catalyzed radical cross-coupling reaction.
- Deoxygenation of two alcohol fragments.
- One-pot reaction procedure under open-air conditions.
Main Results:
- Successful direct coupling of two different alcohol subunits.
- Formation of new carbon-carbon bonds with high structural diversity.
- Demonstration of a robust and air-tolerant catalytic system.
Conclusions:
- The developed nickel-catalyzed cross-alcohol coupling is a powerful tool for organic synthesis.
- This method offers a streamlined approach to accessing complex molecules from simple alcohols.
- The reaction's efficiency and air tolerance open new avenues for chemical exploration.
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The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...

