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4 Cyanobenzyl Bromide for Organic Synthesis Methyl & Butyl Triphenylphosphonium Bromides Supplier
- Time of issue:មេសា . 24, 2025 14:57
(Summary description)Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China. Over the years, we have established good cooperative relations with many outstanding chemical production enterprises in China, and actively cooperated in research and development on some products. Our company's product series mainly include: electroplating chemicals, organic& inorganic fluoro chemicals, organic intermediate chemicals, phase transfer catalyst and Indicator or Biological stain .
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- Time of issue:2019-12-30 10:55
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Did you know 45% of chemical manufacturers report production delays due to impure intermediates? When your synthesis hinges on reagents like 4 cyanobenzyl bromide
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(4 cyanobenzyl bromide)
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(4 cyanobenzyl bromide)
FAQS on 4 cyanobenzyl bromide
Q: What is the primary use of 4-cyanobenzyl bromide in organic synthesis?
A: 4-Cyanobenzyl bromide is commonly used as an alkylating agent, particularly in nucleophilic substitution reactions. It introduces the 4-cyanobenzyl group into target molecules. Its electron-withdrawing cyano group enhances reactivity in such transformations.
Q: How does methyl triphenylphosphonium bromide differ from butyl triphenylphosphonium bromide?
A: The key difference lies in their alkyl chain lengths (methyl vs. butyl). Methyl triphenylphosphonium bromide is often used in Wittig reactions with smaller aldehydes, while the butyl analog provides longer alkyl chains in synthesized alkenes. Their solubility and reactivity vary with alkyl group size.
Q: What safety precautions are required when handling 4-cyanobenzyl bromide?
A: Use gloves, goggles, and a fume hood due to its lachrymatory and irritant properties. Avoid skin contact and inhalation. Store in a cool, dry place away from moisture and strong bases.
Q: Why are triphenylphosphonium salts like methyl/butyl derivatives important in Wittig reactions?
A: They form stable ylides when deprotonated, crucial for alkene formation. The alkyl group (methyl/butyl) determines the resulting alkene's structure. These salts enable precise control over carbon-carbon double bond positions.
Q: Can 4-cyanobenzyl bromide and triphenylphosphonium salts be stored together?
A: No—4-cyanobenzyl bromide is moisture-sensitive and reactive, while phosphonium salts are hygroscopic. Store separately in airtight containers with desiccants. Avoid cross-contamination to prevent unintended reactions.
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