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GRUBBS CATALYST 2ND GENERATION

CAS No.
246047-72-3
Chemical Name:
GRUBBS CATALYST 2ND GENERATION
Synonyms
GRUBBS II;Grubbs 2nd;Grubbs catalyst II;Grubbs Gen 2nd;2nd generation Grubbs catalyst;(1,3-DiMesityliMidazolin-2-ylidene)(tricyclohexylphosphine)rutheniuM dichloride;Benzylidene(dichloro)(1,3-diMesityl-2-iMidazolidinylidene)rutheniuM - tricyclohexylphosphine (1:1);benzylidene-[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]-dichlororuthenium,tricyclohexylphosphane;(1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium;Grubbs G2
CBNumber:
CB4322469
Molecular Formula:
C46H65Cl2N2PRu
Molecular Weight:
848.98
MDL Number:
MFCD03453237
MOL File:
246047-72-3.mol
Last updated:2023-12-13 16:54:32

GRUBBS CATALYST 2ND GENERATION Properties

Melting point 143.5-148.5 °C(lit.)
storage temp. 2-8°C
solubility Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Very Slightly, Heated)
form Solid
color Brown to Very Dark Brown to Very Dark Red
InChIKey FCDPQMAOJARMTG-UHFFFAOYSA-L
FDA UNII 6DHB6F3EXA
EPA Substance Registry System Ruthenium, [1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(phenylmethylene)(tricyclohexylphosphine)-, (SP-5-41)- (246047-72-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS02
Signal word  Warning
Hazard statements  H228
Precautionary statements  P210-P240-P241-P280-P370+P378
Hazard Codes  F
Risk Statements  36/37/38-11
Safety Statements  26-36/37/39
RIDADR  1325
WGK Germany  3
10-23
HazardClass  4.1
PackingGroup 

GRUBBS CATALYST 2ND GENERATION price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 919764 Grubbs Catalyst® M204 ChemBeads 246047-72-3 250MG $124 2024-03-01 Buy
Sigma-Aldrich 919764 Grubbs Catalyst® M204 ChemBeads 246047-72-3 1G $311 2024-03-01 Buy
Sigma-Aldrich 569747 Grubbs Catalyst, 2nd Generation 246047-72-3 2g $599 2024-03-01 Buy
Sigma-Aldrich 569747 Grubbs Catalyst, 2nd Generation 246047-72-3 10g $2600 2024-03-01 Buy
Sigma-Aldrich 569747 Grubbs Catalyst, 2nd Generation 246047-72-3 100mg $49.4 2024-03-01 Buy
Product number Packaging Price Buy
919764 250MG $124 Buy
919764 1G $311 Buy
569747 2g $599 Buy
569747 10g $2600 Buy
569747 100mg $49.4 Buy

GRUBBS CATALYST 2ND GENERATION Chemical Properties,Uses,Production

Description

Grubbs catalysts are a series of transition metal carbene complexes used as catalyst for olefin metathesis.1 The Grubbs catalysts are based on a ruthenium atom surrounded by five ligands: two neutral electron-donating entities (e.g., trialkylphosphines, N-heterocyclic carbenes), two monoanionic groups (e.g., halides), and one alkylidene moiety (e.g., unsubstituted and substituted methylidenes). L2X2Ru=CHR complexes (where L is a phosphine ligand) were discovered first and are referred to as the first-generation Grubbs catalyst. (L)(L’)X2Ru=CHR complexes (where L is a phosphine ligand and L’ a saturated N-heterocyclic carbene or NHC ligand) are referred to as the second-generation Grubbs catalysts.
The first-generation Grubbs catalysts show attractive functional-group tolerance and handling properties and have been widely used as highly efficient promoters for ring opening metathesis polymerizations, ring-closing metathesis reactions to make disubstituted olefins, ethenolysis (i.e., cleavage of the carbon–carbon double bond), cross-metathesis of terminal olefins, and the preparation of 1,3-dienes via enyne metathesis. These catalysts and analogues are still widely used in important processes, including the ethenolysis of feedstocks derived from bio-renewable seed oils and the manufacture of macrocyclic hepatitis C therapeutics. Nevertheless, the first-generation Grubbs catalysts show limitations with electron-poor and electron-rich double bonds as well as with sterically hindered systems. The second-generation Grubbs catalysts with excellent metathesis activity while retaining the handling characteristics and broad functional-group tolerance of the earlier Grubbs catalysts are thereby developed. At the same time, the second-generation catalysts are stable against moisture and air.

Reference

M. L. Crawley, B. M. Trost, Applications of Transition Metal Catalysis in Drug Discovery and Development, 2012, ISBN 978-0-470-63132-4

Chemical Properties

pink-brown to red-purple crystals or powder

Characteristics

Grubbs catalyst is a kind of coordination compound used in olefin metathesis reaction, and the ligand in it has a great influence on the catalytic performance and stability of the catalyst. Grubbs second-generation catalysts are more active than first-generation catalysts and have a wider substrate range, including sterically demanding or deactivated olefins such as 1,1-disubstituted olefins and α,β-non- Saturated carbonyl compounds.

Uses

Grubbs Catalyst? M204 can be used as a catalyst for ring-closing metathesis (RCM), cross-metathesis, and ring-opening metathesis polymerization (ROMP). It is also used to synthesize trisubstituted olefins with excellent functional group tolerance and selectivity via cross-metathesis and ring closing metathesis reactions.
It can also be used as a catalyst:

  • To synthesize coumarins from phenolic compounds via RCM.
  • To cleave secondary (E)-allyl vic-diols to aldehydes.

Uses

suzuki reaction

88-05-1
246047-72-3
Synthesis of GRUBBS CATALYST 2ND GENERATION from 2,4,6-Trimethylaniline

GRUBBS CATALYST 2ND GENERATION Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 285)Suppliers
Supplier Tel Email Country ProdList Advantage
WinWin Chemical CO., Limited
+86-0086-577-64498589 +86-15355981851 sales@win-winchemical.com China 13854 58
PT CHEM GROUP LIMITED
+86-85511178 +86-85511178 peter68@ptchemgroup.com China 35453 58
Shanghai UCHEM Inc.
+862156762820 +86-13564624040 sales@myuchem.com China 6710 58
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+86-371-66670886 info@dakenam.com China 15928 58
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Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075 jack.li@time-chemicals.com China 1807 55
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714 fandachem@gmail.com China 9348 55
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 32480 60
AB PharmaTech,LLC
323-480-4688 United States 989 55

View Lastest Price from GRUBBS CATALYST 2ND GENERATION manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Grubbs Catalyst 2nd Generation pictures 2024-04-26 Grubbs Catalyst 2nd Generation
246047-72-3
US $0.00 / KG 1KG ≥99% 100mt/year Jinan Finer Chemical Co., Ltd
Grubbs catalyst 2nd generation pictures 2024-02-23 Grubbs catalyst 2nd generation
246047-72-3
US $132.00-459.00 / g 5g 0.98 10kg Shanghai UCHEM Inc.
	GRUBBS CATALYST 2ND GENERATION pictures 2022-09-24 GRUBBS CATALYST 2ND GENERATION
246047-72-3
US $0.00 / kg 1kg 99% 1000kg henan kanbei chemical co.,ltd
1,3-Bis-(2,4,6-trimethylphenyl)-2-(imidazolidinylidene)(dichlorophenylmethylene)(tricyclohexylphosphine)ruthenium, Benzylidene[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(tricyclohexylphosphine)ruthenium, (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(PHENYLMETHYLENE)(TRICYCLOHEXYLPHOSPHINE)RUTHENIUM RUTHENIUM,[1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE]DICHLORO (PHENYLMETHYLENE) (TRICYCLOHEXYLPHOSPHINE) Grubbs Catalyst, 2nd RutheniuM,[1,3-bis(2,4,6-triMethylphenyl)-2-iMidazolidinylidene]dichloro(phenylMethylene)(tricyclohexylphosphine)-,(SP-5-41)- Catalyst, 2nd Generation Tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene][benzylidene]rut Tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene][benzylidine]Ruthenium(IV)dichloride BENZYLIDENE[1,3-DIMESITYL-2-IMIDAZOL.]-C L2-(TRI-CHEX-P)-RU Tricyclohexylphosphine1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-yli GRUBBS CATALYST,2 ND GEN Grubbs Catalyst, 2nd Generation≥ 98% (NMR) (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium Benzylidene[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(tricyclohexylphosphine)ruthenium [1 Grubb's second generation catalyst,97% Grubbs Catalyst 2nd Generation,97+% Benzylidene[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene] dichloro(tricyclohexyl-phosphine) ruthenium (1,3-Bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium ,97% (1,3-Bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium ,95% Grubbs Catalyst, 2nd Generation,(1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, 1,3-Bis-(2,4,6-trimethylphenyl)-2-(imidazolidinylidene 1,3-Bis-(2,4,6-trimethylphenyl)-2-(imidazolidinylidene)(dichlorophenylmethylene)(tricyclohexylphosphine)ruthenium, Benzylidene[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(tricyclohexylphosphine)ruthenium Grubbs2ndgenerationcatalyst [1,3-bis(2,4,6-triMethylphenyl)iMidazolidin-2-ylidene](phenylMethylidene)(tricyclohexyl-$l^{5}-phosphanyl)rutheniuMbis(yliuM) dichloride Grubbs Catalyst 2nd Generation Grubbs Grubb's II Catalyst Grubbs (2nd generation) Grubbs Catalyst, 2nd Generation Grubb's second generation catalyst GRUBBS CATALYST 2ND GENERATION (SP-5-41)-[1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium Grubbs Catalyst(TM) 2nd Generation 1,3-Bis-(2,4,6-trimethylphenyl)-2-(imidazolidinylidene)(dichlorophenyl -methylene)(tricyclohexylphosphine)ruthenium (II) Tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-di... Oxychlorination of Ethylene with Copper Chloride Catalyst* Grubbs Gen 2nd Benzylidene(dichloro)(1,3-diMesityl-2-iMidazolidinylidene)rutheniuM - tricyclohexylphosphine (1:1) Grubbs catalyst II GRUBBS II (1,3-DiMesityliMidazolin-2-ylidene)(tricyclohexylphosphine)rutheniuM dichloride 2nd generation Grubbs catalyst (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium benzylidene-[1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]-dichlororuthenium,tricyclohexylphosphane Grubbs 2nd (1,3-Dimesitylimidazolin-2-ylidene) Grubbs G2 [1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]-dichloro(benzylidene)(tricyclohexylphosphine)ruthenium(II) Grubbs Catalyst??M204 Validamine Impurity 3 [1,3-Bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]-dic 246047-72-3 C46H65Cl2N2PRu Catalysis and Inorganic Chemistry Metathesis Catalysts Ru