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Merck
CN

906719

Sigma-Aldrich

Pyrylium tetrafluoroborate

≥95%

别名:

Pyry-BF4

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关于此项目

经验公式（希尔记法）:
C5H5BF4O
化学文摘社编号:
80279-50-1
分子量:
167.90
MDL编号:
MFCD32857267
UNSPSC代码:
12352107
NACRES:
NA.22

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方案

≥95%

表单

powder

储存温度

2-8°C

SMILES字符串

[B-](F)(F)(F)F.[o+]1ccccc1

InChI

1S/C5H5O.BF4/c1-2-4-6-5-3-1;2-1(3,4)5/h1-5H;/q+1;-1

InChI key

SJNICXIZTGPXAU-UHFFFAOYSA-N

应用

Pyrylium tetrafluoroborate is used for the functionalization of heterocyclic amines, activating them for nucleophilic substitution. As demonstrated by the Cornella lab, the intermediate pyridinium salts can react with a vast array of nucelophiles to form new C-N, C-O, and C-S bonds, making pyrylium tetrafluoroborate a valuable reagent for late-stage functionalization.

其他说明

Selective Functionalization of Aminoheterocycles by a Pyrylium Salt

Selective Late-Stage Sulfonyl Chloride Formation from Sulfonamides Enabled by PyryBF4

Synthesis of Sulfonyl Fluorides from Sulfonamides

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000237945
0000187683
0000237945
0000187683
0000184049

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Daniel Moser et al.
Angewandte Chemie (International ed. in English), 57(34), 11035-11039 (2018-07-04)
The functionalization of aminoheterocycles by using a pyrylium tetrafluoroborate reagent (Pyry-BF4 ) is presented. This reagent efficiently condenses with a great variety of heterocyclic amines and primes the C-N bond for nucleophilic aromatic substitution. More than 60 examples for the

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Cornella Group – Professor Product Portal

The main focus of the Cornella research group is the development of rapid, practical and efficient methodologies for organic synthesis. In addition to efficiency and practicality, the group is highly interested in discovering new reactivity with the aim of unveiling novel transformations. More specifically, on the fundamental understanding and application of catalytic processes and the development of simple reagents. These two approaches have enormous potential and impact across the chemical sciences.

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