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:10160-87-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai
Cas:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryCangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
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Cas:10160-87-9
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:10160-87-9
Min.Order:1 Gram
FOB Price: $6.0 / 9.0
Type:Trading Company
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.
Cas:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:10160-87-9
Min.Order:10 Kilogram
Negotiable
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:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryPROPARGYLALDEHYDE DIETHYL ACETAL CAS:10160-87-9 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 quality
Cas:10160-87-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
Negotiable
Type:Lab/Research institutions
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:By Sea/Air/Courier Port:Qingdao
Cas:10160-87-9
Min.Order:1 Kilogram
FOB Price: $16.0 / 20.0
Type:Lab/Research institutions
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:10160-87-9
Min.Order:0 Metric Ton
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
Cas:10160-87-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryEstablished in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Our credo is committed to your reliable business partne
Massive 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 als
Cas:10160-87-9
Min.Order:1 Gram
FOB Price: $1.0
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
Cas:10160-87-9
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
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 providing h
We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:10160-87-9
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryProduct name: 3,3-Diethoxy-1-Propyne CAS No.:10160-87-9 Molecule Formula:C7H12O2 Molecule Weight:128.17 Purity: 98.0% Package: 25kg/drum Description:Light yellow or colorless transparent liquid Manufacture Standards:Enterprise Standard
Cas:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
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Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryPROPARGYLALDEHYDE DIETHYL ACETAL Chemical Properties Boiling point 138-139.5 °C(lit.) density 0.894 g/mL at 25 °C(lit.) refractive index n20/D 1.412(lit.) Fp 90 °F storage temp. 2-8°C form Liquid color Clea
Cas:10160-87-9
Min.Order:1 Gram
FOB Price: $6.0
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
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:10160-87-9
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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
Cas:10160-87-9
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
Cas:10160-87-9
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquirySuperior quality, moderate price & quick delivery. Appearance:white powder Storage:stored in a cool, dry and ventilated place to provent sun and rain Package:25kg/drum, or as per your request. Application:Used as Pharmaceutical Intermediate
Cas:10160-87-9
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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
Cas:10160-87-9
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
2,3-dibromo-1,1-diethoxypropane
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With potassium hydroxide; tetraoctyl ammonium bromide In Petroleum ether at 80℃; for 6h; | 79% |
With ammonia; sodium amide In diethyl ether at -34℃; for 0.25h; | 75% |
With ammonia; sodium amide at -30℃; | 75% |
Conditions | Yield |
---|---|
With sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In dichloromethane Ambient temperature; | 70% |
ethanol
1-bromo-2,2-dichlorocyclopropane
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In dichloromethane Ambient temperature; | 57% |
Conditions | Yield |
---|---|
With sulfur dioxide; calcium chloride |
2,2-dibromo-propionaldehyde diethylacetal
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With potassium tert-butylate; tert-butyl alcohol at 100℃; |
6,6-diethoxy-3-methyl-hex-4-yn-3-ol
sodium methylate
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
at 150℃; under 20 Torr; |
orthoformic acid triethyl ester
acetylene
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
(i) EtMgBr, (ii) /BRN= 605384/; Multistep reaction; | |
beim Behandeln von Acetylen-monomagnesiumbromid; |
2,2-dibromo-propionaldehyde diethylacetal
potassium tert-butylate
tert-butyl alcohol
Propiolaldehyde diethyl acetal
3-(1-ethoxy-prop-2-ynyloxy)-propenal
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
(heating); |
orthoformic acid triethyl ester
acrolein
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
(i) (bromination), (ii) /BRN= 605384/, (iii) NaNH2, liq. NH3; Multistep reaction; |
bromoethyne
diethyl phenyl orthoformate
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With magnesium 1.) THF, 2.) THF, RT; Yield given. Multistep reaction; |
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With sodium hydroxide at 160℃; |
orthoformic acid triethyl ester
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With diethyl ether |
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With potassium hydroxide | |
With potassium hydroxide |
2,3-dibromo-1,1-diethoxypropane
A
2-bromo-3,3-diethoxypropene
B
Propiolaldehyde diethyl acetal
propargyl alcohol
orthoformic acid triethyl ester
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With manganese(IV) oxide; In(OSO2CF3)3 In chloroform for 42h; Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 19.0 g / ZnCl2 / aq. ethanol / 1 h / 15 °C 2: 75 percent / NaNH2; NH3 / diethyl ether / 0.25 h / -34 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 80 percent / HCl gas, TsOH / ethanol / 70 Torr 2: 1.) Mg / 1.) THF, 2.) THF, RT View Scheme |
orthoformic acid triethyl ester
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: NaNH2, liq. NH3 View Scheme |
Conditions | Yield |
---|---|
With sodium hydroxide at 82℃; for 10h; Time; Large scale; | 60 kg |
5-methyl-dihydro-furan-2-one
A
1-butylene
B
Propiolaldehyde diethyl acetal
C
3-Methylbutenoic acid
D
1-(2-methyl-cyclopropyl)-ethanone
Conditions | Yield |
---|---|
With niobium(v) loaded on MFI-type zeolite at 320℃; under 760.051 Torr; Reagent/catalyst; |
Propiolaldehyde diethyl acetal
isobutyraldehyde
6,6-Diethoxy-2-methyl-hex-4-yn-3-ol
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; cyclohexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: isobutyraldehyde In tetrahydrofuran; cyclohexane at -78℃; for 3h; Stage #3: With hydrogenchloride In tetrahydrofuran; cyclohexane; water | 100% |
With n-butyllithium In diethyl ether; hexane for 2h; Ambient temperature; | 55% |
2-chloro-3-quinoline carboxaldehyde
Propiolaldehyde diethyl acetal
2-(3,3-diethoxy-prop-1-ynyl)-quinoline-3-carbaldehyde
Conditions | Yield |
---|---|
With copper(l) iodide; triethylamine; bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 20℃; Sonogashira reaction; | 100% |
Propiolaldehyde diethyl acetal
3-iodochlorobenzene
1-chloro-3-(3,3-diethoxyprop-1-ynyl)benzene
Conditions | Yield |
---|---|
With triethylamine; copper(l) iodide; [1,4-bis(diphenylphosphino)butane] palladium(ll) dichloride at 20℃; for 4h; Sonogashira Coupling; | 100% |
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 20℃; for 4h; | 100% |
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine In tetrahydrofuran at 25℃; for 4h; Sonogashira Cross-Coupling; Inert atmosphere; |
Propiolaldehyde diethyl acetal
(S)-Propylene oxide
(+)-6,6-diethoxy-4-hexyn-2-ol
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -30 - 20℃; for 4h; | 99% |
With N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium In tetrahydrofuran; hexane for 0.5h; Ambient temperature; | 90.6% |
ethyl-2-azidoacetate
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
Amberlyst A-21*CuI In dichloromethane at 20℃; for 12h; Huisgen cycloaddition; | 99% |
With copper(II) loaded mesoporous SBA-15 In dichloromethane at 20℃; Huisgen Cycloaddition; regioselective reaction; | 66% |
With copper(I) iodide adsorbed on Wyoming montmorillonite at 20℃; for 18h; Huisgen's cycloaddition; Neat (no solvent); |
Propiolaldehyde diethyl acetal
3-azidopropan-1-ol
Conditions | Yield |
---|---|
Amberlyst A-21*CuI In dichloromethane at 20℃; for 12h; Huisgen cycloaddition; | 99% |
Propiolaldehyde diethyl acetal
benzyl azide
1-benzyl-4-(diethoxymethyl)-1H-1,2,3-triazole
Conditions | Yield |
---|---|
Amberlyst A-21*CuI In dichloromethane at 20℃; for 12h; Huisgen cycloaddition; | 99% |
With Amberlyst A-21*copper(I) iodide In dichloromethane at 20℃; for 12h; Huisgen reaction; Automated synthesizer; Combinatorial reaction / High throughput screening (HTS); regioselective reaction; | 99% |
With copper(ll) sulfate pentahydrate; sodium L-ascorbate In dichloromethane; water at 20℃; for 12h; | 98% |
6-bromoquinoline
Propiolaldehyde diethyl acetal
6-(3,3-diethoxyprop-1-ynyl)quinoline
Conditions | Yield |
---|---|
With copper(l) iodide; triethylamine; triphenylphosphine; palladium diacetate In N,N-dimethyl-formamide at 90℃; Inert atmosphere; | 99% |
Propiolaldehyde diethyl acetal
4-diethoxymethyl-1-(3-trifluoroacetamidopropyl)-1,2,3-triazole
Conditions | Yield |
---|---|
With Amberlyst A-21*copper(I) iodide In dichloromethane at 20℃; for 12h; Huisgen reaction; Automated synthesizer; Combinatorial reaction / High throughput screening (HTS); regioselective reaction; | 99% |
Propiolaldehyde diethyl acetal
(S)-2-(tert-butyldiphenylsilyloxy)tetradecanal
(S)-5-(tert-butyldiphenylsilyloxy)-1,1-diethoxyheptadec-2-yn-4-ol
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -28 - 0℃; for 1h; Stage #2: (S)-2-(tert-butyldiphenylsilyloxy)tetradecanal In tetrahydrofuran; hexane at -78 - 20℃; for 1.5h; | 99% |
4-Trifluoromethylbenzaldehyde
Propiolaldehyde diethyl acetal
4,4-diethoxy-1-(4-(trifluoromethyl)phenyl)but-2-yn-1-ol
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: 4-Trifluoromethylbenzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 99% |
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Stage #2: 4-Trifluoromethylbenzaldehyde In tetrahydrofuran; hexane at 25℃; for 16h; | 79% |
Propiolaldehyde diethyl acetal
p-chlorophenyldiazomethane
1-chloro-4-(4,4-diethoxybuta-1,2-dien-1-yl)benzene
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With copper(l) iodide; triethylamine In 1,4-dioxane for 0.166667h; Flow reactor; Stage #2: p-chlorophenyldiazomethane In 1,4-dioxane; dichloromethane at 20℃; for 0.166667h; Flow reactor; | 99% |
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; Inert atmosphere; Stage #2: C19H29FN3OP In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; diastereoselective reaction; | 98% |
Propiolaldehyde diethyl acetal
N,N′-bis[6-(3,3-dimethylbutyrylamino)pyridin-2-yl]-5-iodoisophthalamide
5-(3,3-diethoxyprop-1-ynyl)-N1,N3-bis(6-(3,3-dimethylbutyrylamino)pyridin-2-yl)isophthalamide
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine In tetrahydrofuran at 20℃; for 20h; Sonogashira coupling; | 98% |
Propiolaldehyde diethyl acetal
C23H48O5Si2
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran at -78 - 0℃; | 98% |
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; Inert atmosphere; Stage #2: C19H30N3OP In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; diastereoselective reaction; | 97% |
Propiolaldehyde diethyl acetal
(4S)-4-tert-butoxy-3,4-dihydro-2H-pyrrole 1-oxide
C15H27NO4
Conditions | Yield |
---|---|
With copper(l) iodide; 1,10-Phenanthroline; triethylamine In acetonitrile at 0 - 20℃; for 24h; Kinugasa reaction; Inert atmosphere; | 97% |
Propiolaldehyde diethyl acetal
Conditions | Yield |
---|---|
With dichloro bis(acetonitrile) palladium(II); caesium carbonate; XPhos In tetrahydrofuran at 60℃; for 5.5h; Sonogashira coupling; Inert atmosphere; Sealed tube; stereoselective reaction; | 97% |
Propiolaldehyde diethyl acetal
2,6-dimethylbenzaldehyde
1-(2,6-dimethylphenyl)-4,4-diethoxybut-2-yn-1-ol
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: 2,6-dimethylbenzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 97% |
Propiolaldehyde diethyl acetal
p-methylazidobenzene
1-(4-methylphenyl)-1H-1,2,3-triazole-4-carboxaldehyde
Conditions | Yield |
---|---|
With copper(II) sulfate; sodium L-ascorbate In water; tert-butyl alcohol at 70℃; for 24h; Solvent; | 97% |
ethyl 2-bromoisobutyrate
Propiolaldehyde diethyl acetal
non-1-en-3-yn-2-ylbenzene
Conditions | Yield |
---|---|
With copper(I) thiophene-2-carboxylate; C45H50N3O2P; caesium carbonate In diethyl ether at 20℃; for 24h; Schlenk technique; Inert atmosphere; enantioselective reaction; | 97% |
Propiolaldehyde diethyl acetal
4-Methyl-N-[(E)-3-phenyl-prop-2-en-(E)-ylidene]-benzenesulfonamide
(E)-N-(4,4'-diethoxy-1-styrylbut-2-ynyl)-4-toluenesulfonamide
Conditions | Yield |
---|---|
With n-butyllithium; zinc(II) chloride In tetrahydrofuran; hexane 1.) -78 deg C, 30 min; 2.) Et2O, -78 deg C, 30 min then 0 deg C, 5 h; | 96% |
With n-butyllithium; zinc(II) chloride In diethyl ether at -78℃; Yield given; |
Propiolaldehyde diethyl acetal
o-iodo-methyl-benzoic acid
1-(2-methoxycarbonylphenyl)-3,3-diethoxyprop-1-yne
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal; o-iodo-methyl-benzoic acid With trans-bis(triphenylphosphine)palladium dichloride; triethylamine at 20℃; for 0.166667h; Sonogashira Cross-Coupling; Inert atmosphere; Stage #2: With copper(l) iodide at 50℃; for 4h; Sonogashira Cross-Coupling; Inert atmosphere; | 96% |
With copper(l) iodide; bis(acetato)bis(triphenylphosphine)palladium(0); diethylamine In N,N-dimethyl-formamide for 2h; Ambient temperature; | 82% |
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; Inert atmosphere; Stage #2: C19H29BrN3OP In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere; diastereoselective reaction; | 96% |
Propiolaldehyde diethyl acetal
4-dimethylamino-benzaldehyde
C16H23NO3
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at 0℃; Inert atmosphere; Stage #2: 4-dimethylamino-benzaldehyde In tetrahydrofuran; hexane at 0℃; Inert atmosphere; | 96% |
Propiolaldehyde diethyl acetal
4-methoxy-benzaldehyde
4,4-diethoxy-1-(4-methoxyphenyl)but-2-yn-1-ol
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: 4-methoxy-benzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 96% |
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Stage #2: 4-methoxy-benzaldehyde In tetrahydrofuran; hexane at 25℃; for 16h; | 96% |
Conditions | Yield |
---|---|
With copper(I) thiophene-2-carboxylate; C55H70N3O2P; caesium carbonate In diethyl ether at 20℃; for 36h; Inert atmosphere; Schlenk technique; enantioselective reaction; | 96% |
Propiolaldehyde diethyl acetal
benzaldehyde
(+/-)-4-hydroxy-4-phenylbut-2-ynal diethyl acetal
Conditions | Yield |
---|---|
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Inert atmosphere; Stage #2: benzaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere; | 95% |
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Stage #2: benzaldehyde In tetrahydrofuran; hexane at 25℃; for 16h; | 95% |
Stage #1: Propiolaldehyde diethyl acetal With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Stage #2: benzaldehyde In tetrahydrofuran; hexane at -78 - -40℃; for 3h; | 94% |
Propiolaldehyde diethyl acetal
4-methyl-6-phenyl-3-trifluoromethanesulfonylpyridazine
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine In tetrahydrofuran for 3h; Ambient temperature; | 95% |
Propiolaldehyde diethyl acetal
{2-[(R)-1-(3,4-Dimethoxy-phenyl)-3-iodo-4-oxo-cyclohex-2-enyl]-ethyl}-methyl-carbamic acid methyl ester
{2-[(R)-3-(3,3-Diethoxy-prop-1-ynyl)-1-(3,4-dimethoxy-phenyl)-4-oxo-cyclohex-2-enyl]-ethyl}-methyl-carbamic acid methyl ester
Conditions | Yield |
---|---|
With diisopropylamine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide In tetrahydrofuran at 0℃; for 0.666667h; | 95% |
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