Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities
Cas:4045-44-7
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inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
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inquiryhigh purity Appearance:colorless to slight yellow liquid Storage:Sealed, dry, microtherm , avoid light and smell. Package:meet customer's demand Application:organic synthesis Transportation:by sea or by air Port:Shanghai, Qingdao
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inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
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Cas:4045-44-7
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Type:Manufacturers
inquiryProduct Name: 1,2,3,4,5-Pentamethylcyclopentadiene Synonyms: Cyclopentadiene, 1,2,3,4,5-pentamethyl-;1,2,3,4,5-PENTAMETHYLCYCLOPENTADIENE;1,2,3,4,5-pentamethyl-1,3-cyclopentadiene;PENTAMETHYLCYCLOPENTADIENE;1,2,3,4,5-PENTAMETHYLCYCLOPE
Cas:4045-44-7
Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
Cas:4045-44-7
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Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
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Min.Order:10 Gram
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Type:Trading Company
inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:4045-44-7
Min.Order:1 Kilogram
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inquiry1,2,3,4,5-Pentamethylcyclopentadiene CAS:4045-44-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quali
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Min.Order:1 Gram
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda
Cas:4045-44-7
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:4045-44-7
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryJ&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
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inquiryMassive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
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Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
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Min.Order:10 Gram
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Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:colourless liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:25kg/drum, or as per your request. Application:Used as Pharmaceutical Intermediat
Cas:4045-44-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryProduct name: 1,2,3,4,5-Pentamethylcyclopentadiene CAS No.:4045-44-7 Molecule Formula:C10H16 Molecule Weight:136.23 Purity: 95% Package: 25kg/drum Description:Light yellow powder Manufacture Standards:Enterprise Standard TESTING
Cas:4045-44-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1,2,3,4,5-Pentamethylcyclopentadiene Chemical Properties Boiling point 58 °C13 mm Hg(lit.) density 0.87 g/mL at 25 °C(lit.) refractive index n20/D 1.474(lit.) Fp 112 °F storage temp. −20°C form Liquid Spe
Cas:4045-44-7
Min.Order:1 Kilogram
FOB Price: $65.0
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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Cas:4045-44-7
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inquiryShandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
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Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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Min.Order:1 Metric Ton
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Type:Trading Company
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Cas:4045-44-7
Min.Order:0
Negotiable
Type:Manufacturers
inquiryCapability on chemical synthesis 1. Beijing High-Tech Enterprises 2. Strong R&D Team 3. 8 years of experiences in R & D of high-tech Catalyst; 4. 5000 production techniques, 69 items of national patents, and 360 kinds of products on sal
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inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
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Type:Lab/Research institutions
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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Type:Trading Company
inquiry3,4,5-trimethyl-2,5-heptadien-4-ol
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With C24H14Ga4N2O6(12-)*12K(1+) In water at 50℃; for 12h; pH=11; Nazarov cyclization; | 100% |
With toluene-4-sulfonic acid In diethyl ether for 1h; Inert atmosphere; Reflux; | 75% |
With toluene-4-sulfonic acid In diethyl ether | |
With K12Ga4[N,N'-bis(2,3-dihydroxybenzoyl)-1,5-diaminonapthalene]6 In dimethylsulfoxide-d6; water-d2 at 45℃; pH=8; Nazarov cyclization; |
7-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-7-tridecanol
A
tridecan-7-one
B
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
In toluene for 30h; Heating; | A 98% B 100% |
(4-buthoxyphenyl)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methanol
A
1,2,3,4,5-pentamethylcyclopentadiene
B
p-butoxybenzaldehyde
Conditions | Yield |
---|---|
In toluene at 110℃; for 3h; | A n/a B 97% |
10-chloro-1-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-1-decanol
A
10-chlorodecanal
B
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 12h; | A 95% B n/a |
Conditions | Yield |
---|---|
In toluene at 110℃; for 3h; | A n/a B 93% |
A
1,2,3,4,5-pentamethylcyclopentadiene
B
4-isobutyrylbenzaldehyde
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 93% |
(4-bromophenyl)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methanol
A
1,2,3,4,5-pentamethylcyclopentadiene
B
4-bromo-benzaldehyde
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 92% |
1-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-1-dodecanol
A
Dodecanal
B
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 12h; | A 92% B n/a |
5-formylpentamethylcyclopentadiene
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With n-butyllithium; cyclopenta-1,3-diene In tetrahydrofuran; hexane | 91% |
methyl 4-[(hydroxy)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methyl]benzoate
A
1,2,3,4,5-pentamethylcyclopentadiene
B
methyl 4-formylbenzoate
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 91% |
1,2,3,3,4,5-hexamethyl-6-methylene-cyclohexa-1,4-diene
A
1,2,3,4,5-pentamethylcyclopentadiene
B
Hexamethylbenzene
Conditions | Yield |
---|---|
With tetrafluoroboric acid In water for 24h; Ambient temperature; Irradiation; Title compound not separated from byproducts; | A 90% B 7 % Chromat. |
In water Product distribution; Mechanism; Ambient temperature; Irradiation; formation of heptamethylbenzenium cation with dissolution in different acids; |
(2-naphthyl)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methanol
A
1,2,3,4,5-pentamethylcyclopentadiene
B
β-naphthaldehyde
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 87% |
{4-[(hydroxy)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methyl]phenyl}(phenyl)methanone
A
1,2,3,4,5-pentamethylcyclopentadiene
B
4-benzoylbenzaldehyde
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 87% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 0 - 20℃; | A n/a B 86% |
methyl 6-hydroxy-6-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)hexanoate
A
methyl 6-oxohexanoate
B
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 36h; | A 81% B n/a |
1-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-3-phenyl-1-propanol
A
3-phenyl-propionaldehyde
B
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 12h; | A 80% B n/a |
1-cyclohexyl-1-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-methanol
A
1,2,3,4,5-pentamethylcyclopentadiene
B
cyclohexanecarbaldehyde
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 24h; | A n/a B 80% |
7-hydroxy-7-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)heptanenitrile
A
1,2,3,4,5-pentamethylcyclopentadiene
B
7-oxoheptanenitrile
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene at 110℃; for 24h; | A n/a B 75% |
Conditions | Yield |
---|---|
With trichloroacetic acid In dichloromethane at 28℃; for 1.5h; | A n/a B 69% |
propyl bromide
A
propene
B
propane
C
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
In tetrahydrofuran at 70℃; Schlenk technique; Glovebox; | A n/a B n/a C n/a D 69% |
A
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With benzoic acid In benzene-d6 at 45℃; | A 67% B 33% |
Conditions | Yield |
---|---|
With benzoic acid In benzene-d6 at 45℃; for 24h; | A 58% B 42% |
N,N'-bis(2,6-dimethylphenyl)butane-2,3-diimine
A
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
Stage #1: bis(pentamethylcyclopentadienyl)ytterbium(THF)2; N,N'-bis(2,6-dimethylphenyl)butane-2,3-diimine In tetrahydrofuran at 40℃; for 0.5h; Schlenk technique; Glovebox; Stage #2: In toluene at 60℃; for 5h; Schlenk technique; Glovebox; | A 52% B 57% |
5-(1-Hydroxyethyl)-1,2,3,4,5-pentamethylcyclopentadien
A
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With triphenylphosphine In tetrachloromethane for 0.333333h; Heating; | A 34% B 28% |
1,2,3,4,5,6-hexamethylbicyclo[2.2.0]hexa-2,5-diene
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With sulfuric acid In methanol |
5-acetyl-1,2,3,4,5-pentamethylcyclopentadiene
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In ethylene glycol |
2,3,4,5-tetramethyl-2-cyclopenten-1-one
methyllithium
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
(i), (ii) I2; Multistep reaction; |
7-(1,2,3,4,5-Pentamethyl-cyclopenta-2,4-dienyl)-cyclohepta-1,3,5-triene
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With trifluoroacetic acid |
dimethyl sulfate
sodium cyclopentadienylide
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With sodium amide In ammonia |
Conditions | Yield |
---|---|
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. and phosphine (molar ratio of Ti/Al/PPh3 = 1/2/2); monitored by ESR; | 100% |
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. and phosphine (molar ratio of Ti/Al/PPh3 = 1/3/2); monitored by ESR; | 100% |
Conditions | Yield |
---|---|
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. (molar ratio of Ti/Al/PPh3 = 1/4/4); monitored by ESR; | 100% |
Conditions | Yield |
---|---|
In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. (molar ratio of Ti/Al = 1/3); monitored by ESR; | 100% |
Conditions | Yield |
---|---|
In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. (molar ratio of Ti/Al = 1/2); monitored by ESR; | 100% |
Conditions | Yield |
---|---|
In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. (molar ratio of Ti/Al = 1/5); monitored by ESR; | 100% |
Conditions | Yield |
---|---|
In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of AlEt3 (molar ratio of Ti/Al = 1/4); monitored by ESR; | 100% |
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of AlEt3 and phosphine (molar ratio of Ti/Al/phosphine = 1/4/2); monitored by ESR; | 50% |
{RuCl2(NCMe)4}
1,2,3,4,5-pentamethylcyclopentadiene
bis(pentamethylcyclopentadienyl)ruthenium(II)
Conditions | Yield |
---|---|
With lithium carbonate In water; isopropyl alcohol at 90℃; for 4h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
In tetrahydrofuran at -78 - 20℃; | 100% |
1,2,3,4,5-pentamethylcyclopentadiene
bis(pentamethylcyclopentadienyl)ruthenium(II)
Conditions | Yield |
---|---|
With lithium carbonate In water; isopropyl alcohol at 90℃; for 4h; | 100% |
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
With potassium hexamethylsilazane In diethyl ether at 20℃; for 15h; | 100% |
With potassium hexamethylsilazane |
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
In ethanol for 3h; Reflux; Inert atmosphere; | 100% |
1,2,3,4,5-pentamethylcyclopentadiene
bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]
Conditions | Yield |
---|---|
In methanol (Ar); using Schlenk techniques; treatment of IrCl3*99H2O with C5HMe5 in MeOH according to: C.White, A. Yates, P. M. Maitlis, D. M. Heinekey, Inorg. Synth. 29 (1992) 228; | 99% |
In methanol at 119.84 - 149.84℃; for 0.75h; Microwave irradiation; Sonication; Inert atmosphere; | 54.5% |
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
In methanol (Ar); using Schlenk techniques; treatment of RhCl3*3H2O with C5HMe5 in MeOH according to: C.White, A. Yates, P. M. Maitlis, D. M. Heinekey, Inorg. Synth. 29 (1992) 228; | 99% |
In methanol for 6h; Reflux; |
1,2,3,4,5-pentamethylcyclopentadiene
(E)-methyl 4-((1R,2R,3S,4R)-2-ethynyl-3-hydroxy-4-methylcyclohexyl)-4-oxobut-2-enoate
Conditions | Yield |
---|---|
In benzene at 20℃; Diels-Alder reaction; Inert atmosphere; | 99% |
1,2,3,4,5-pentamethylcyclopentadiene
Conditions | Yield |
---|---|
In ethanol for 3h; Inert atmosphere; Reflux; | 99% |
1,2,3,4,5-pentamethylcyclopentadiene
p-butoxybenzaldehyde
(4-buthoxyphenyl)(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)methanol
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: p-butoxybenzaldehyde In tetrahydrofuran; hexane at -20℃; for 1h; | 98% |
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: p-butoxybenzaldehyde In tetrahydrofuran; hexane at -20℃; for 1h; | 98% |
1,2,3,4,5-pentamethylcyclopentadiene
Methyl cinnamate
methyl 3-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-3-phenylpropanoate
Conditions | Yield |
---|---|
With n-butyllithium; diethylaluminium chloride In tetrahydrofuran; hexane at -20℃; for 1h; | 98% |
1,2,3,4,5-pentamethylcyclopentadiene
m-Chlorobenzoyl chloride
3-chlorophenyl 1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl ketone
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: m-Chlorobenzoyl chloride In tetrahydrofuran; hexane at 0℃; for 0.5h; | 98% |
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.666667h; Stage #2: m-Chlorobenzoyl chloride In tetrahydrofuran; hexane at 0℃; for 0.5h; Further stages.; | 93% |
dodecacarbonyl-triangulo-triruthenium
1,2,3,4,5-pentamethylcyclopentadiene
Diphenylvinylphosphine
C25H30OPRu
Conditions | Yield |
---|---|
Stage #1: dodecacarbonyl-triangulo-triruthenium; 1,2,3,4,5-pentamethylcyclopentadiene In 1,4-dioxane at 20℃; for 1h; Glovebox; Schlenk technique; Reflux; Inert atmosphere; Stage #2: Diphenylvinylphosphine In n-heptane for 2h; Glovebox; Schlenk technique; Reflux; Inert atmosphere; | 98% |
Conditions | Yield |
---|---|
With methyltrioxorhenium(VII) In acetone at 30℃; for 0.75h; | 98% |
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: ortho-anisaldehyde In tetrahydrofuran; hexane at -20℃; for 1h; | 97% |
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: ortho-anisaldehyde In tetrahydrofuran; hexane at -20℃; for 1h; | 97% |
tridecan-7-one
1,2,3,4,5-pentamethylcyclopentadiene
7-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-7-tridecanol
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -20℃; for 0.5h; Stage #2: tridecan-7-one With dimethylaluminum chloride In tetrahydrofuran; hexane at -20℃; for 1h; | 97% |
1,2,3,4,5-pentamethylcyclopentadiene
cyclohexanecarbaldehyde
1-cyclohexyl-1-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-methanol
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -20℃; for 0.5h; Stage #2: cyclohexanecarbaldehyde With dimethylaluminum chloride In tetrahydrofuran; hexane at -20℃; for 1h; | 97% |
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at -20℃; for 0.5h; Stage #2: With dimethylaluminum chloride In tetrahydrofuran; hexane at -20℃; for 0.5h; Stage #3: cyclohexanecarbaldehyde In tetrahydrofuran; hexane at -20℃; for 1h; | 97% |
1,2,3,4,5-pentamethylcyclopentadiene
benzoyl chloride
1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl phenyl ketone
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: benzoyl chloride In tetrahydrofuran; hexane at 0℃; for 0.5h; | 96% |
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.666667h; Stage #2: benzoyl chloride In tetrahydrofuran; hexane at 0℃; for 0.5h; Further stages.; | 90% |
1,2,3,4,5-pentamethylcyclopentadiene
bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]
Conditions | Yield |
---|---|
With hydrogenchloride In further solvent(s) addn. of concd. HCl to soln. of Ir-complex in pentamethylcyclopentadiene, refluxing with stirring under Ar; leaving stirring for 2 h, crystn., filtn., washing with methanol yields first crop of crystals, further treatment of filtrate yields another batch of crystals, recrystn. from CHCl3/diethyl ether, elem. anal.; | 96% |
1,2,3,4,5-pentamethylcyclopentadiene
ortho-toluoyl chloride
1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl o-tolyl ketone
Conditions | Yield |
---|---|
Stage #1: 1,2,3,4,5-pentamethylcyclopentadiene With n-butyllithium In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: ortho-toluoyl chloride In tetrahydrofuran; hexane at 0℃; for 0.5h; | 96% |
1,2,3,4,5-pentamethylcyclopentadiene
pentamethyl-1,3-cyclopentadienylsodium
Conditions | Yield |
---|---|
With sodium In toluene for 72h; Heating; | 95% |
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