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Cross coupling

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facet applications:Cross coupling
facet content type:Technical Article
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用2-甲基吡啶-甲硼烷复合物进行还原胺化反应
2-甲基吡啶-甲硼烷(pic-BH3)是还原胺的一个出色的替代试剂。
TPGS-750-M:用于室温下水中有机金属化学反应的第二代两亲物
Lipshutz及其同事最近开发了第二代技术,用于基于聚氧乙戊基-α-生育酚琥珀酸酯衍生物TPGS-750-M的原始PTS表面活性剂。
金鸡纳生物碱
不对称相转移催化(PTC)已被公认为是许多均相合成有机转化的“绿色”替代方法,并且已被广泛应用。合成修饰的金鸡纳生物碱是用于不对称PTC的典型手性有机催化剂。
N-杂环卡宾-铜络合物
设计全新的金属催化络合物时,N-杂环卡宾配体(NHCs)是绝佳选择。这些催化剂具有空气和水分稳定性,可作为前体用于合成更多空气敏感复合物。
N-杂环卡宾(NHC)配体
随着金属络合物催化的未活化底物的交叉偶联反应领域的快速进展,通过引入大量的非手性和手性膦配体化合物库,已变革了化学市场。
Salen配体
Salen配体:Jacobsen和Katsuki在1990年分别发表了第一篇关于salen作为锰的配体用于不对称环氧化反应的报道。
G3和G4 Buchwald预催化剂
G3和G4 Buchwald预催化剂是一类最新的空气、湿度和热稳定型交叉偶联复合物,可用于键形成以实现其多功能性和高反应性。
C2型轴对称手性双噁唑啉(BOX)配体
使用络合Cu(I)OTf的BOX配体进行不对称催化苯乙烯合成氮杂环丙烷的反应,BOX配体带苯基取代基的优于具有位阻需求的叔丁(t-Bu)基团。
MCAT- 53™ Catalyst for Ruthenium Formation
A recyclable, ligand-free ruthenium catalyst for C–H activation reactions and concomitant C–C bond formation in the presence of water.
Jørgensen’s Organocatalysts
Professor Karl Anker Jørgensen and his group have developed ethers which serve as excellent chiral organocatalysts in the direct asymmetric α-functionalization of aldehydes.
Buchwald Phosphine Ligands
Buchwald phosphine ligands for C-C, C-N, and C-O bond formation.
Syntheses of Functionalized Alkenes, Arenes, and Cycloalkenes via a Hydroboration-Coupling Sequence
Tandem hydroboration Suzuki Coupling both intermolecular and intramolecular gave diverse alkyl substituted products dppf
G3 and G4 Buchwald Precatalysts
G3 and G4 Buchwald palladium precatalysts are the newest air, moisture, and thermally stable crossing-coupling complexes used in bond formation for their versatility and high reactivity.
P-Phos, PhanePhos and BoPhoz™ Ligands
The P-Phos ligand family was developed by Professor Chan of Hong Kong Polytechnic University and licensed to JM CCT in 2002. P-Phos is an atropisomeric biaryl bisphosphine with the unique feature of incorporating two methoxy-substituted pyridine rings in the backbone.
Chiral Quest Phosphine Ligands
Sigma-Aldrich has research quantities of a series of Zhang’s chiral phosphines for catalytic asymmetric hydrogenations.
Jamison Nickel (II) Precatalysts
The Jamison group has developed a library of bench-stable phosphine-containing nickel(II) precatalysts that are converted into active catalysts in situ.
DSM MonoPhos™ Ligands
In collaboration with DSM, we are pleased to offer a range of MonoPhos™ ligands for the research market.† Feringa and co-workers have invented a diverse array of these chiral, monodentate phosphoramidites based on the privileged BINOL platform.
cataCXium®
cataCXium® - Ligands and Complexes for Efficient Cross-Coupling Reactions. Cross-coupling reactions are an important class of catalytic transformations with applications in polymer science as well as in the fine chemicals and pharmaceutical industries.
Willis Pyridinates for Palladium-Catalyzed Cross-Coupling Reactions
Description: Professor Willis and partners at Pfizer have shown with pyridine-2- sulfinates a palladium-catalyzed desulfinylative cross-coupling process can be realized.
C-O Cross-Coupling of Activated Aryl and Heteroaryl Halides with Aliphatic Alcohols
JosiPhos CyPF-tBu and palladium give catalyst for alkoxylation of activated heteroaryl halides with primary, secondary, and tertiary alcohols
DalPhos Ligands
DalPhos is air-stable and contains the bulky di(1-adamantyl)phosphino [P(1-Ad)2] fragment. These ligands are useful in Pd-catalyzed C-N and C-C bond formation. Both Me-DalPhos and Mor-DalPhos allow for Pd-catalyzed ammonia, hydrazine and acetone cross-coupling with good functional group tolerance
Potassium Trifluoroborate Salts
Potassium trifluoroborates are a special class of organoboron reagents that offer several advantages over the corresponding boronic acids and esters in that they are moisture- and air-stable, and are remarkably compliant with strong oxidative conditions.
Scale-Up Guide: Buchwald-Hartwig Amination Reaction
All of the preformed catalysts used in the kit are air and moisture stable complexes in their commercially available form. Once activated by base under the reaction conditions they become sensitive to air. To best enable scale-up success, the use
PHOX
Of the thousands of chiral ligands used in asymmetric synthesis a relatively large number exhibit C2-symmetry. More recently, non-symmetrical modular P,N-ligands have been introduced independently by Pfaltz, Helmchen, and Williams and applied successfully in various metal-catalyzed reactions.
N-Heterocyclic Carbene (NHC) Ligands
Emerging class of privileged ligands
Ir(I)-Catalyzed C–H Borylation
Arylboronic acids and esters are invaluable tools for the chemical community. These powerful reagents are used for a variety of transformations, most notably the Suzuki-Miyaura cross-coupling reaction.
Trost Ligands
The Trost group at Stanford University has pioneered the use of C-2 symmetric diaminocyclohexyl (DACH) ligands in AAA, allowing for the rapid synthesis of a diverse range of chiral products with a limited number of chemical transformations.
MRT - Mono-Boc-Protection of Diamines
Mono-Boc-protected diamines are versatile building blocks for chemical synthesis. Their production is a lot more challenging than the simple reaction scheme might imply, because the Boc-anhydride reagent cannot differentiate between the two identical amino moieties in the substrate.
KitAlysis™ C-N (Buchwald-Hartwig) High-Throughput Screening Kit
All contents in the foil bag are weighed, plated, packed, and sealed in a glove box under nitrogen.
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