테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0)

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0) 속성

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0) MSDS

Palladium(0)tetrakis(triphenylphosphine)

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0) C화학적 특성, 용도, 생산

개요

팔라듐 테트라 카본 (트리 페닐 포스 핀) 팔라듐 은 화합물 Pd (P (C₆H₅) ₃) ₄이며. 그것은 공기 중 분해시 갈색이되는 밝은 황색 결정질 고체이다.

용도

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0)은 팔라듐 - 촉매 결합 반응 용 촉매로서 널리 사용된다.

보관

실온에서 직사 광선을 피하십시오.

화학적 성질

yellow crystals

용도

Tetrakis(triphenylphosphine)palladium(0) is widely used as a catalyst for palladium-catalyzed coupling reactions.

주요 응용

Palladium-Catalyzed Three-Component Reaction for the Synthesis of Imidazolidinones.

Once the Schlenk tube containing K2CO3 (55 mg, 0.40 mmol) is flamed, dried, and filled with argon, Tetrakis(triphenylphosphine)palladium (12 mg, 0.010 mmol), PMB-protected 2,3-allenylamine (37 mg, 0.20 mmol), iodobenzene (58 mg, 0.28 mmol), phenyl isocyanate (36 mg, 0.30 mmol), and CH3CN (4 mL) are added sequentially. The resulting solution is heated to and stirred at 70°C. When the reaction is completed as monitored by TLC, the solvent is evaporated under reduced pressure, and the residue is purified by chromatography on silica gel (petroleum ether : ethyl acetate = 7:1) to afford the corresponding imidazolidione (72 mg, Y. 96%) as an oil.

화학 반응

1. Catalyst for Suzuki coupling of chiral secondary organoboronic esters.
2. Palladium-catalyzed SNAr reactions for the synthesis of heteroaryl ethers.
3. Catalyst for cross-coupling of a-diazocarbonyl compouns with arylboronic acids.
4. Diastereoselective synthesis of trans-1,2-diazetidines.
5. Palladium-catalyzed alkynyl iminium ion cyclization.
6. Widely used reagent in a variety of transformations including Heck arylation, enyne and diyne cycloisomerization.
7. Catalysts for cross-coupling.
   
   

Purification Methods

The palladium complex is recrystallised from EtOH. It should not be heated excessively as it dissociates to Pd(PPh3)3 and PdPh3 and then further to Pd(PPh3)2 and PPh3. It is also air sensitive as PPh3 is oxidized to PPh3O. It is stable only for short periods because on exposure to heat or air it turns from yellow to orange and dissociates in solution so the solutions should be used directly. However it can always be prepared freshly by mixing Pd(NO3)2 (2mmols) and PPh3(2mmols) in hot *C6H6 when vigorous evolution of nitric oxide occurs and a solid mass separates. This is collected and crystallised from EtOH. Its cryoscopic constant in *C6H6 (at 0.601g/20mL) corresponds to M 1156 [Malatesta & Angoletti J Chem Soc 1186 1957]. It is a useful catalyst for Suzuki coupling reactions [Trost Tetrahedron 33 2615 1977]. [Beilstein 16 IV 954.] This palladium catalyst bound to a polymer support (~0.06mmol/g) is also commercially available [cf Fenger & LeDrain Tetrahedron Lett 39 4287 1998]. [Beilstein 16 IV 954.]

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0) 준비 용품 및 원자재

원자재

준비 용품

테트라 키스 (트리 페닐 포스 핀) 팔라듐 (0) 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Wuhan Huahan Dingcheng New Material Technology Co., Ltd	+undefined-027-81388558 +undefined086-1878077615	huahandingcheng@sina.com	China	342	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	6710	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7613	58
Shandong Juchuang Chemical Co., LTD	+86-18885615001 +86-18885615001	admin@juchuangchem.com	China	387	58
Springchem New Material Technology Co.,Limited	+86-021-62885108 +8613917661608	info@spring-chem.com	China	2068	57
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1811	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21695	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9348	55

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