아세트산 팔라듐 (II)
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아세트산 팔라듐 (II) 속성
- 녹는점
- 205 °C
- 증기압
- 0.002Pa at 25℃
- 저장 조건
- Store below +30°C.
- 용해도
- 빙초산의 단량체 또는 벤젠의 삼량체로 용해됩니다.
- 물리적 상태
- 빨간색의 다양한 형태-(분말/플레이크/결정질/구슬)
- 색상
- 적갈색
- 수소이온지수(pH)
- 2-3 (H2O, 20℃)(aqueous suspension)
- pH 범위
- 2.0 - 3.0 at 20 °C
- 수용성
- 불용성
- 감도
- Hygroscopic
- Hydrolytic Sensitivity
- 4: no reaction with water under neutral conditions
- 최대 파장(λmax)
- 400nm(EtOH)(lit.)
- Merck
- 14,6991
- BRN
- 6086766
- InChIKey
- PCUVQHHZCJMCHO-UHFFFAOYSA-M
- LogP
- -0.17 at 20℃
- CAS 데이터베이스
- 3375-31-3(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi,Xn,C | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 41-36/37/38-40-35 | ||
| 안전지침서 | 26-39-36/37/39-45-36 | ||
| 유엔번호(UN No.) | 3261 | ||
| WGK 독일 | 2 | ||
| RTECS 번호 | AJ1900000 | ||
| F 고인화성물질 | 10-23 | ||
| TSCA | Yes | ||
| HS 번호 | 28439090 | ||
| 독성 | LD50 orally in Rabbit: >= 5110 mg/kg | ||
| 유해화학물질 필터링 | 2017-1-766(신규화학물질) | ||
| 함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 아세트산 팔라듐(Ⅱ) 및 이를 1.0% 이상 함유한 혼합물 |
아세트산 팔라듐 (II) C화학적 특성, 용도, 생산
화학적 성질
Brown needles, soluble in benzene and toluene, insoluble in ether and alcohol, keep in dark and refrigerated.용도
Palladium (II) Acetate Trimer is used in Suzuki-Miyaura cross-coupling reactions and a catalyst for intramolecular coupling. It also serves to catalyze the chemoselective reduction of nitroarenes.정의
Palladium acetate is a chemical compound of palladium. It is used as a catalyst for many organic reactions and as a precursor to other palladium(II) compounds. Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is found as a free metal alloyed with gold and other platinum group metals and in the rare minerals cooperite and polarite. (Toxin and Toxin Target Database (T3DB))제조 방법
The synthesis of palladium acetate was first reported by Wilkinson et al.,where glacial acetic acid containing palladium powder is heated at reflux with a minimal amount of nitric acid until the generation of brown NOx fumes ceases. Although this is a relatively old method, it is still the most commercially employed route for the synthesis of palladium acetate, considering the process economics. Palladium (II) Acetate can be synthesized in two steps from palladium sponge via the intermediate dinitrate by first combining it with hot glacial acetic acid and nitric acid:Pd + 2 HNO3 → Pd(NO3)2 + H2
Pd(NO3)2 + 2 CH3COOH → Pd(O2CCH3)2 + 2 HNO3
화학 반응
- Efficient catalyst for the arylation of olefins (Heck reaction).
- Catalyst for cross-coupling reactions.
- Catalyst for C-H activation.
- Precatalyst for enantioselective decarboxylative protonation of allyl β-ketoesters.
일반 설명
Palladium(II) acetate is a homogenous oxidation catalyst. It participates in the activation of alkenic and aromatic compounds towards oxidative inter- and intramolecular nucleophilic reactions. Crystals of palladium(II) acetate have a trimeric structure, having symmetry D3h. Each of the palladium atoms in the crystals are joined to the other two by double acetate bridges. Microencapsulation of palladium(II) acetate in polyurea affords polyurea-encapsulated palladium(II) acetate. It is a versatile heterogeneous catalyst for various phosphine-free cross-coupling reactions. It participates as catalyst in the Heck coupling reaction of pthalides with different alkenes.Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of palladium.Purification Methods
It recrystallises from CHCl3 as purple crystals. It can be washed with AcOH and H2O and dried in air. Large crystals are obtained by dissolving it in *C6H6, adding half its volume of AcOH and allowing it to evaporate slowly at room temperature. It forms green adducts with nitrogen donors, it dissolves in KI solution to form solid PdI2 and a red solution of PdI42-, but is insoluble in aqueous saturated NaCl, and NaOAc. It dissolves in HCl to form PdCl42-. It is soluble in CHCl3, CH2Cl2, Me2CO, MeCN, Et2O, but it is insoluble in H2O, and decomposes when warmed in alcohols in which it is also insoluble. [Morehouse et al. Chem Ind (London) 544 1964, Stephenson et al. J Chem Soc 3632 1965, Skapski & Smart J Chem Soc (D) 658 1970, Heck Acc Chem Res 12 146 1979.]아세트산 팔라듐 (II) 준비 용품 및 원자재
원자재
준비 용품
3- 아미노 디 페닐
2,3-디히드로-1H-인돌-5-카르복실산
3-페닐벤질아민
N,N'-Bis- (1-naphthalenyl)-N,N'-bis-phenyl-(1,1'-biphenyl)-4,4'-diamine
5-시아노-2,3-디하이드로-1H-인돌
에틸(R)-2-하이드록시-4-페닐부티레이트
(E)-METHYL 3-(4-BROMOPHENYL)ACRYLATE
(S)-(-)-7,7'-BIS[DI(3,5-DIMETHYLPHENYL)PHOSPHINO]-2,2',3,3'-TETRAHYDRO-1,1'-SPIROBIINDANE
5-페닐티오펜-2-카르복살디하이드
C-(3,4-DIHYDRO-2H-BENZO[1,4]OXAZIN-3-YL)-메틸아민
(S)-7,7'-비스[디(p-메틸페닐)포스피노]-1,1'-스피로빈단
4-(2-케토-1-벤지미다졸린일)피페리딘
1-아세틸-5-아미노-2,3-디하이드로-(1H)-인돌
ethyl 1H-indole-6-carboxylate
(R)-(+)-7,7'-BIS[DI(4-METHYLPHENYL)PHOSPHINO]-2,2',3,3'-TETRAHYDRO-1,1'-SPIROBIINDANE
2-MORPHOLINO-5-(TRIFLUOROMETHYL)벤잘데하이드
4-아미노페닐 붕소산 피나콜 에스테르
(R)-(+)-7,7'-BIS(DIPHENYLPHOSPHINO)-2,2',3,3'-TETRAHYDRO-1,1'-SPIROBIINDANE
디페닐아세틸렌
에틸인돌린-6-카르복실레이트
5-페닐티오펜-2-카르복실산
5-메톡시소라렌
4-아미노디페닐
INDOLINE-6-CARBOXYLIC ACID
3-페닐-1H-피라졸
1-(4-Pyridyl)piperazine
아세트산알릴
5-메틸린돌
4,6-Diamino-2-pyrimidinol
(R)-7,7'-BIS(DIPHENYLPHOSPHINO)-1,1'-SPIROBIINDANE
아세트산 팔라듐 (II) 공급 업체
글로벌( 645)공급 업체
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| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 |
sales@capot.com | China | 29730 | 60 |
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