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Type:Manufacturers
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Type:Manufacturers
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Min.Order:1 Kilogram
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Type:Lab/Research institutions
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Min.Order:1 Gram
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Min.Order:1 Kilogram
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Min.Order:1 Kilogram
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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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Min.Order:0 Metric Ton
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Min.Order:1 Gram
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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
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Min.Order:1 Gram
Negotiable
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inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
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inquiryISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai
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Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran 1.) -78 deg C, 30 min, 2.) -78 deg C to r.t., 15 min; | 97% |
Conditions | Yield |
---|---|
In diethyl ether | 95% |
In diethyl ether | 10.03 g |
Conditions | Yield |
---|---|
With cesium fluoride In N,N-dimethyl-formamide at 10 - 15℃; for 24h; | 90% |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate; copper(ll) bromide; palladium(II) bromide at 20℃; under 760 Torr; for 2h; | 83% |
With oxygen; sodium acetate; triphenylphosphine; palladium dichloride In N,N-dimethyl-formamide at 20℃; for 48h; | 75% |
With sodium acetate; copper dichloride; palladium dichloride under 760 Torr; for 2h; Ambient temperature; | 74 % Chromat. |
4-methoxyphenylzinc chloride
methyl (E)-2,3-dibromo-2-octenoate
A
methyl 2-octynoate
B
4,4'-Dimethoxybiphenyl
Conditions | Yield |
---|---|
With palladium diacetate; triphenyl-arsane In tetrahydrofuran at 20℃; for 21.5h; Further byproducts given; | A n/a B n/a C 61% D n/a |
1-octynylzinc chloride
methyl (E)-2,3-dibromo-2-octenoate
A
methyl 2-octynoate
Conditions | Yield |
---|---|
With palladium diacetate; triphenyl-arsane In tetrahydrofuran at 20℃; for 23h; | A n/a B 57% C n/a |
4-fluorophenylzinc chloride
methyl (E)-2,3-dibromo-2-octenoate
A
methyl 2-octynoate
B
4,4'-difluorobiphenyl
Conditions | Yield |
---|---|
With palladium diacetate; triphenyl-arsane In tetrahydrofuran at 20℃; for 24h; | A n/a B n/a C 56% D n/a |
methyl (E)-2,3-dibromo-2-octenoate
A
methyl 2-octynoate
B
2,2'-bis(methoxymethoxy)-1,1'-biphenyl
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 20℃; for 71h; | A n/a B n/a C 43% D n/a |
Conditions | Yield |
---|---|
With lead(IV) acetate for 0.25h; | 38% |
Conditions | Yield |
---|---|
With sulfuric acid | |
With hydrogenchloride | 8.9 g |
Methyl-2-hexanoyl-2-triphenylphosphoranylidenacetat
methyl 2-octynoate
Conditions | Yield |
---|---|
at 220 - 250℃; |
Conditions | Yield |
---|---|
With sodium carbonate at -20℃; for 0.5h; Hydrolysis; |
Oct-2-ynylsulfanyl-benzene
methyl 2-octynoate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: pyridine; sulfuryl chloride / CCl4 / 0.5 h / 0 °C 2: sodium carbonate / 0.5 h / -20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: benzene 2: 220 - 250 °C View Scheme |
Conditions | Yield |
---|---|
With formic acid; (1,2-dimethoxyethane)dichloronickel(II); zinc; bis(2-diphenylphosphinoethyl)phenylphosphine In 1,4-dioxane at 120℃; for 16h; Sealed tube; | 100% |
methyl 2-octynoate
methyl (E)-2,3-dibromo-2-octenoate
Conditions | Yield |
---|---|
With pyridinium hydrobromide perbromide In dichloromethane for 192h; | 98% |
methyl 2-octynoate
2-cis octenoic acid methyl ester
Conditions | Yield |
---|---|
With ammonium formate In N,N-dimethyl-formamide at 80℃; Green chemistry; diastereoselective reaction; | 96% |
Stage #1: methyl 2-octynoate With tris-(dibenzylideneacetone)dipalladium(0); 1,4-di(diphenylphosphino)-butane In 1,4-dioxane at 20℃; for 0.25h; Inert atmosphere; Stage #2: With formic acid In 1,4-dioxane at 80℃; for 3h; Inert atmosphere; optical yield given as %ee; stereoselective reaction; | 90% |
With formic acid; nickel dibromide; zinc In 1,4-dioxane at 120℃; for 16h; Sealed tube; stereoselective reaction; | 82% |
With hydrogen; Lindlar's catalyst | |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; formic acid; tributylphosphine; triethylamine In tetrahydrofuran at 40℃; for 2h; | 95 % Chromat. |
Conditions | Yield |
---|---|
With palladium diacetate In trifluoroacetic acid at 20℃; for 77h; | 96% |
Conditions | Yield |
---|---|
With copper diacetate In methanol at 28℃; for 2.5h; Inert atmosphere; stereoselective reaction; | 96% |
With methanol; copper (I) acetate at 28℃; for 24h; Inert atmosphere; stereoselective reaction; | 94% |
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 93% |
methyl 2-octynoate
4-methoxyphenylboronic acid
methyl (E)-3-(4-methoxyphenyl)-2-octenoate
Conditions | Yield |
---|---|
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 96% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 16h; Sealed tube; | 96% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 10h; Inert atmosphere; stereoselective reaction; | 94% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 10h; Inert atmosphere; stereoselective reaction; | 94% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 4h; Inert atmosphere; stereoselective reaction; | 94% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 4h; Inert atmosphere; stereoselective reaction; | 94% |
methyl 2-octynoate
4-Bromophenylboronic acid
methyl (E)-3-(4-bromophenyl)-2-octenoate
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 24h; Inert atmosphere; stereoselective reaction; | 94% |
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 93% |
methyl 2-octynoate
m-nitrobenzene boronic acid
methyl (E)-3-(3-nitrophenyl)-2-octenoate
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 5h; Inert atmosphere; stereoselective reaction; | 94% |
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 67% |
methyl 2-octynoate
3-Formylphenylboronic acid
methyl (E)-3-(3-formylphenyl)-2-octenoate
Conditions | Yield |
---|---|
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 94% |
Conditions | Yield |
---|---|
Stage #1: methyl 2-octynoate With tris-(dibenzylideneacetone)dipalladium(0); 1,4-di(diphenylphosphino)-butane In 1,4-dioxane; water at 20℃; for 0.25h; Inert atmosphere; Stage #2: With formic acid In 1,4-dioxane at 80℃; for 10h; Inert atmosphere; optical yield given as %ee; stereoselective reaction; | 93% |
Stage #1: methyl 2-octynoate With Triethoxysilane; tris(acetonitrile)pentamethylcyclopentadienylruthenium(II) hexafluorophosphate In dichloromethane at 20℃; for 0.5h; Stage #2: With copper(l) iodide; tetrabutyl ammonium fluoride In tetrahydrofuran at 20℃; for 20h; Further stages.; | 83% |
Conditions | Yield |
---|---|
Stage #1: 1,4-dihydronaphthalene-1,4-epoxide With zinc; dibromo[1,2-bis(diphenylphosphino)ethane]nickel(II) In acetonitrile at 20℃; Stage #2: methyl 2-octynoate With water In acetonitrile at 20℃; for 16h; Further stages.; | 93% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 5h; Inert atmosphere; stereoselective reaction; | 93% |
styrene
methyl 2-octynoate
(E)-3-(1-chlorohexylidene)-dihydro-5-phenylfuran-2(3H)-one
Conditions | Yield |
---|---|
With copper(II) choride dihydrate; oxygen; palladium dichloride In acetonitrile; benzene at 100℃; under 760.051 Torr; for 12h; | 93% |
methyl 2-octynoate
2-Allyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
C12H20O2
Conditions | Yield |
---|---|
With copper diacetate In methanol at -78 - 25℃; for 3h; Inert atmosphere; stereoselective reaction; | 92% |
Conditions | Yield |
---|---|
Stage #1: methyl 2-octynoate With tris-(dibenzylideneacetone)dipalladium(0); tricyclohexylphosphine In 1,4-dioxane at 20℃; for 0.25h; Inert atmosphere; Stage #2: With formic acid In 1,4-dioxane at 80℃; Inert atmosphere; chemoselective reaction; | 91% |
With o-phenylenebis(diphenylphosphine); copper diacetate; poly(methylhydrosiloxane) In toluene; tert-butyl alcohol at 20℃; for 3h; | 90% |
With magnesium In methanol Ambient temperature; reacted until the Mg had dissolved; | 76% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 6h; Inert atmosphere; stereoselective reaction; | 91% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 3h; Inert atmosphere; stereoselective reaction; | 91% |
With methanol; copper (I) acetate at 28℃; for 3h; stereoselective reaction; | 91% |
methyl 2-octynoate
3-methoxyphenylboronic acid
methyl (E)-3-(3-methoxyphenyl)-2-octenoate
Conditions | Yield |
---|---|
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 91% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 100℃; for 16h; Sealed tube; | 91% |
Conditions | Yield |
---|---|
With copper (I) acetate In methanol at 28℃; for 24h; Inert atmosphere; stereoselective reaction; | 90% |
Conditions | Yield |
---|---|
With cobalt acetylacetonate; 1,2-bis-(diphenylphosphino)ethane In tetrahydrofuran; acetonitrile at 80℃; for 12h; Sealed tube; Inert atmosphere; stereoselective reaction; | 90% |
methyl 2-octynoate
allyl alcohol
(E)-methyl2-allyl-3-bromooct-2-enoate
Conditions | Yield |
---|---|
With copper(ll) bromide; palladium dichloride In tetrahydrofuran at 25℃; for 12h; Solvent; Reagent/catalyst; regioselective reaction; | 90% |
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