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Syngene International
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Chemistry trouble shooting
I appeared for an interview in Sep 2024, where I was asked the following questions.
The Suzuki reaction produces biphenyls as products, with boronic acids and palladium catalysts as key components.
The Suzuki reaction involves coupling aryl halides with boronic acids.
Palladium catalysts are commonly used, such as Pd(PPh3)4.
Byproducts can include unreacted starting materials and biphenyls.
Example: Coupling phenylboronic acid with bromobenzene yields biphenyl.
Aldehydes can be converted to alkynes using strong bases and alkyl halides in a two-step process known as the Corey-Fuchs reaction.
The Corey-Fuchs reaction involves converting an aldehyde to an intermediate alkyne using a phosphonium ylide.
First, the aldehyde is treated with a phosphonium salt and a strong base to form an alkyne.
For example, using phenylacetaldehyde with a phosphonium salt can yield phenylacetylene.
Thi...
NMR values for moisture in DMSO and CDCl3 are crucial for understanding solvent purity and sample conditions.
DMSO typically shows a peak for water at around 3.3 ppm.
CDCl3 has a residual water peak around 1.56 ppm.
The presence of moisture can affect NMR results, indicating solvent quality.
For accurate NMR analysis, it's essential to minimize moisture in samples.
Q2R1 is a research project focused on analyzing the impact of climate change on agricultural productivity.
Q2R1 involves collecting data on weather patterns, crop yields, and soil quality.
The research aims to identify trends and patterns in agricultural productivity in relation to climate change.
Researchers may use statistical models and data visualization techniques to analyze the data.
The findings of Q2R1 could inform...
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I applied via Company Website and was interviewed in Mar 2022. There were 3 interview rounds.
I applied via Company Website and was interviewed before Apr 2023. There was 1 interview round.
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