The Production Process of 1,1′′-(1-Methylethylidene)bis[ethylferrocene]

1,1′′-(1-Methylethylidene)bis[ethylferrocene] is an important organometallic compound that finds application in various areas of the chemical industry.
Its production process involves several steps that require careful attention to detail.
In this article, we will discuss the production process of 1,1′′-(1-Methylethylidene)bis[ethylferrocene] in detail.

Step 1: Preparation of Ethylferrocene
The first step in the production of 1,1′′-(1-Methylethylidene)bis[ethylferrocene] is the preparation of ethylferrocene.
This is achieved by reacting ferrocene with excess ethylene in the presence of a nickel catalyst.
The reaction takes place in a hydrocarbon solvent, such as hexane, at a temperature of around 60-70°C.

Step 2: Reduction of Ethylferrocene
After the preparation of ethylferrocene, the next step is to reduce the compound to form 1,1′′-(1-methylethylidene)bis[ethylferrocene].
This is achieved by reacting ethylferrocene with hydrogen in the presence of a palladium catalyst.
The reaction takes place in a solvent such as methanol or ethanol, at a temperature of around 40-50°C.

Step 3: Chlorination of 1,1′′-(1-Methylethylidene)bis[ethylferrocene]
After the reduction of ethylferrocene, the next step is to chlorinate 1,1′′-(1-methylethylidene)bis[ethylferrocene].
This is achieved by reacting the reduced compound with chlorine gas in the presence of a Lewis acid catalyst such as aluminum chloride.
The reaction takes place in a solvent such as carbon tetrachloride or chloroform, at a temperature of around 0-10°C.

Step 4: Purification of the Product
After the completion of the chlorination reaction, the product is purified to remove any impurities that may have been introduced during the reaction.
This is achieved by washing the product with a solvent such as ether or hexane, and then drying it over anhydrous sodium sulfate.

Step 5: Recrystallization of the Product
The final step in the production of 1,1′′-(1-Methylethylidene)bis[ethylferrocene] is the recrystallization of the product.
This is achieved by dissolving the purified product in a solvent such as acetonitrile or dichloromethane, and then allowing it to crystallize out.
The crystals are then collected and dried under vacuum to remove any trace of solvent.

Overall, the production process of 1,1′′-(1-Methylethylidene)bis[ethylferrocene] involves several steps that require careful attention to detail.
The compound is used in various applications in the chemical industry, and its production is an important process that requires the use of specialized equipment and techniques.