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Merck
CN

638439

2-(二叔丁基膦)联苯

97%

别名:

(2-联苯基)二-叔丁基膦, 2-(二-叔-丁基膦基)联苯, JohnPhos

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关于此项目

线性分子式:
C6H5C6H4P[C(CH3)3]2
化学文摘社编号:
分子量:
298.40
UNSPSC Code:
12352002
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
8322131
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Quality Level

assay

97%

reaction suitability

reaction type: Cross Couplings, reagent type: ligand
reaction type: Buchwald-Hartwig Cross Coupling Reaction, reagent type: ligand
reaction type: C-X Bond Formation, reagent type: ligand
reaction type: Heck Reaction, reagent type: ligand
reaction type: Suzuki-Miyaura Coupling

mp

86-88 °C (lit.)

functional group

phosphine

SMILES string

CC(C)(C)P(c1ccccc1-c2ccccc2)C(C)(C)C

InChI

1S/C20H27P/c1-19(2,3)21(20(4,5)6)18-15-11-10-14-17(18)16-12-8-7-9-13-16/h7-15H,1-6H3

InChI key

CNXMDTWQWLGCPE-UHFFFAOYSA-N

General description

JohnPhos 是Buchwald空间庞大的二芳基膦配体。它是一种反应性二烷基联芳基膦配体,可催化碳-氮键形成反应。带有JohnPhos作为配体的金催化剂的配位化学已通过NMR光谱进行了研究。

了解更多有关Buchwald膦配体的信息

Application

钯催化的Stille交叉偶联反应所用的大位阻联芳基膦配体。
JohnPhos是一种庞大的膦配体,在以下研究中被用作催化剂:
  • 未活化的内部炔烃的氢苯氧基化。
  • 微波介导的苄基溴的Suzuki-Miyaura交叉偶联。
  • 新型咪唑并[1,2-a]吡啶药物的合成,其对疱疹病毒具有强效活性。
  • 将乙烯基溴与肼进行Barluenga′s偶联。
  • Pd催化的α,α--二取代-3-噻吩甲醇的2,3-二芳基化(通过裂解CH和CC键)。
作为配体,其用于芳基卤化物和芳基三氟甲磺酸酯的胺化。

可催化:
  • 二烷氧基苯甲酸与二芳基二硫化物或二芳基二硒醚的脱羧交叉偶联
  • 通过N-烯丙基-N-芳基脲的分子内加氢胺化,立体选择性制备咪唑烷酮
  • 烯烃与芳基氯化物的区域选择性芳基化
  • 用于合成多不饱和大环内酯的交叉偶联反应
  • 区域选择性 O-烷基化反应
  • Sonogashira型交叉偶联


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存储类别

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



历史批次信息供参考:

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商品

Buchwald and coworkers develop versatile phosphine ligands for Pd-catalyzed C–N bond formation; enhancing synthetic reactions for 20 years.

Buchwald phosphine ligands for C-C, C-N, and C-O bond formation.

Buchwald and coworkers develop versatile phosphine ligands for Pd-catalyzed C–N bond formation; enhancing synthetic reactions for 20 years.

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通过将 Catalexis 与 BayBE™ 集成,加速催化剂和配体的筛选,从而在台式和 HTE 工作流程中实现快速、经济高效的反应优化。

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Masaya Nakano et al.
The Journal of organic chemistry, 71(21), 8309-8311 (2006-10-10)
Alpha,alpha-disubstituted 3-thiophenemethanols undergo selective diarylation accompanied by cleavage of the C-H and C-C bonds of the 2- and 3-positions, respectively, upon treatment with aryl bromides in the presence of a palladium catalyst to give the corresponding 2,3-diarylthiophenes in good yields.
Marcia E Richard et al.
Beilstein journal of organic chemistry, 9, 2002-2008 (2013-11-10)
A range of arylgold compounds have been synthesized and investigated as single-component catalysts for the hydrophenoxylation of unactivated internal alkynes. Both carbene and phosphine-ligated compounds were screened as part of this work, and the most efficient catalysts contained either JohnPhos
Artamkina, Galina A.; et al.
Synlett, 2, 235-238 (2006)



全球贸易项目编号

货号GTIN
638439-25G04061833399354
638439-100G04061833301548
638439-5G04061833357019
638439-1G04061832726700