推薦產品
![RuCl(p-异丙基甲苯)[(R,R)-Ts-DPEN]](/deepweb/assets/sigmaaldrich/product/structures/161/670/212e6eb8-dce1-4397-a5ef-3e2e3a296e8c/640/212e6eb8-dce1-4397-a5ef-3e2e3a296e8c.png)
包含
0.26-0.35 mmol/g phosphorous
0.37-0.44 mmol/g palladium
成份
Pd, 1.0
TPP, 0.8
反應適用性
core: palladium
reaction type: Buchwald-Hartwig Cross Coupling Reaction
reaction type: Heck Reaction
reaction type: Hiyama Coupling
reaction type: Negishi Coupling
reaction type: Sonogashira Coupling
reaction type: Stille Coupling
reaction type: Suzuki-Miyaura Coupling
reagent type: catalyst
標籤範圍
0.4 mmol/g Pd loading
一般說明
It is an encapsulated catalyst (EnCat®), wherein palladium acetate and triphenylphosphine (TPP) are microencapsulated within a polyurea matrix, which prevents palladium leaching.
應用
可回收利用的负载化催化剂体系，在 C-C 键的形成和还原过程中可简化钯的除去。
Pd EnCat® TPP30 may be used as a catalyst for the microwave-assisted Sonogashira cross-coupling of:
- Aryl iodides and bromides with terminal alkynes to form the corresponding coupling products under copper-free conditions.
- Bromobenzotriazoles and arylacetylenes in the presence of 1,5-diazabicyclo[5.4.0]undecene-5-ene (DBU) and copper iodide to form 2H-benzo[d][1,2,3]triazole derivatives.
特點和優勢
The advantages of using Pd EnCat® catalysts are:
- low residual metal levels in crude product
- easy recovery of catalyst
- compatibility of immobilized metal with various ligands to effect C-C bond forming reactions
- safer and easier to handle than Pd/C for hydrogenation
- efficiency and economy gains through recovery and recycling
其他說明
基质含量 30%
法律資訊
PdEncat 技术已申请国际专利，包括 PCT/GB 02/03135。
EnCat is a registered trademark of Reaxa Ltd.
訊號詞
Warning
危險分類
Aquatic Chronic 3 - Carc. 2 - Flam. Sol. 2 - Repr. 2 - STOT RE 2 Oral
標靶器官
Liver,Kidney
儲存類別代碼
4.1B - Flammable solid hazardous materials
水污染物質分類（WGK）
WGK 3
閃點（°F）
-9.4 - -7.6 °F
閃點（°C）
-23 - -22 °C
個人防護裝備
dust mask type N95 (US), Eyeshields, Gloves
Pd-EnCatTM TPP30 as a Catalyst for the Generation of Highly Functionalized Aryl-and Alkenyl-Substituted Acetylenes via Microwave-Assisted Sonogashira Type Reactions.
Sedelmeier J, et al.
European Journal of Organic Chemistry, 2009(26), 4412-4420 (2009)
Self-assembly of T-shape 2H-benzo[d][1,2,3]-triazoles. Optical waveguide and photophysical properties.
Torres I, et al.
Royal Society of Chemistry Advances, 6(43), 36544-36553 (2016)
Steven V Ley et al.
Chemical communications (Cambridge, England), (10), 1134-1135 (2002-07-19)
Palladium(II) acetate microencapsulated in polyurea (MC-[Pd]) is an economical and versatile heterogeneous catalyst for a range of phosphine-free cross-coupling reactions in both conventional solvents and supercritical carbon dioxide (scCO2); the catalyst can be recovered by a simple filtration and recycled
Steven V Ley et al.
Organic letters, 5(24), 4665-4668 (2003-11-25)
[reaction: see text] Pd nanoparticles (approximately 2 nm in size) microencapsulated in polyurea is an efficient and recyclable catalyst for reductive ring-opening hydrogenolysis of epoxides, using either HCOOH/Et(3)N or H(2) as a hydrogen donor.
Yu, J.Q., et al.
Chemical Communications (Cambridge, England), 678-697 (2003)
相關內容
Homogeneous palladium catalysts are widely utilized due to their versatility, reactivity and functional group tolerance.
我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務