4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE

Base Information

• Chemical Name: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE
• CAS No.: 459-45-0
• Molecular Formula: C6H4FN2.BF4
• Molecular Weight: 209.914
• Mol file: 459-45-0.mol

Synonyms:4-fluorobenzenediazonium,trifluoroborane,fluoride;

Chemical Property of 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE

Chemical Property:

• PSA: 28.15000
• LogP: 3.61028
• Solubility.: Water

Purity/Quality:

99% ^*data from raw suppliers

4-FluorobenzenediazoniumTetrafluoroborate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE

There total 11 articles about 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 97.0%

tetrafluoroboric acid + 4-fluoroaniline (371-40-4) → 4-fluorobenzenediazonium tetrafluoroborate (459-45-0)

Guidance literature:

With sodium nitrite; In water; at 0 ℃; for 0.5h;

DOI:10.1002/adsc.202101113

Reference yield: 96.0%

4-fluoroaniline (371-40-4) → 4-fluorobenzenediazonium tetrafluoroborate (459-45-0)

Guidance literature:

With sodium nitrite; In tetrafluoroboric acid; water;

Reference yield: 88.0%

tetrafluoroboric acid + 4-fluoroaniline (371-40-4) + sodium nitrite (7632-00-0) → 4-fluorobenzenediazonium tetrafluoroborate (459-45-0)

Guidance literature:

In water; at 0 - 5 ℃; for 0.5h;

DOI:10.1002/ejoc.201601493

upstream raw materials:

4-fluoroaniline

sodium nitrite

sodium tetrafluoroborate

tert.-butylnitrite

Downstream raw materials:

4-(4-Fluorophenyl)-2,2,6,6-tetramethylheptane-3,5-dione

4-fluorobenzenediazocyanide

fluorobenzene

C₁₆H₁₃FN₄

Refernces

Radical fluoroarylation in radiochemical synthesis

10.1016/j.tetlet.2007.12.128

The research focuses on the radical [18F]fluoroarylation of various olefins using 4-[18F]fluorobenzenediazonium ions, offering a novel approach to synthesize radiopharmaceuticals containing a deactivated, 4-[18F]fluoro substituted phenyl group. The study demonstrates the methodology's suitability for the synthesis of 18F-labeled stilbenes, with stilbene 7 being synthesized within 80 minutes with a 30–45% overall radiochemical yield starting from [18F]fluoride. The experiments involved reacting 4-fluorobenzenediazonium tetrafluoroborate with substrates such as arecoline, ecgonidine methylate, and styrenes under optimized conditions using titanium(III)-chloride in dilute hydrochloric acid as a reductant. The analyses included determining radiochemical yields through reverse-phase high-performance liquid chromatography (RP-HPLC) with gradient elution and UV detection at 214 nm, as well as assessing diastereoselectivity in the synthesized products.