DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:179688-29-0
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryItems Standard Result Appearance Off white powder Conforms Melting point 182.0~184.0℃
Cas:179688-29-0
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Manufacturers
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
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryPurity 98% with good quality Competitive price Fast delivery Prompt shipment Appearance:White powder Storage:Store in cool dry place Package:25 kg/drum Application:Pharmaceutical intermediates Port:Shanghai, Nanjing
Cas:179688-29-0
Min.Order:1 Metric Ton
Negotiable
Type:Manufacturers
inquiryProduct Description 6,7-Bis(2-methoxyethoxy)quinazolin-4-(3H)-one
Cas:179688-29-0
Min.Order:10 Gram
FOB Price: $20.0 / 30.0
Type:Lab/Research institutions
inquiryErlotinib Intermediate 6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone[CAS:179688-29-0] HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Other
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
Cas:179688-29-0
Min.Order:1
Negotiable
Type:Other
inquiryBasic information Product Name: 6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone Synonyms: 6,7-BIS(2-METHOXYETHOXY)QUINAZOLIN-4(1H)-ONE;6,7-bis(2-Methoxyethoxy)-3,4-dihydroquinazolin-4-one;6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone;6
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryOur advantage: 1: High quality and Competitive price 2: Quality control, GC&HPLC&NMR or as your requested 3: Packing as your requested, and double check before shipment 4: Prompt shipment with professional documents 5: Excellent after-
Cas:179688-29-0
Min.Order:1 Kilogram
FOB Price: $1.0 / 3.0
Type:Trading Company
inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:179688-29-0
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryName: 6,7-Bis(2-methoxyethoxy)quinazolin-4-(3H)-one CAS NO:179688-29-0 Grade:Erotinib intermediate pharmaceutical intermediate Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage S
Cas:179688-29-0
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryOur company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble metal catalysts, synthesis of electronic chemical materials and general chemicals Imp&Exp trading business. The company
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryName: 6,7-Bis(2-methoxyethoxy)quinazolin-4-(3H)-one CAS: 179688-29-0 Our factory capacity: 50kg/month Other name: Erlotinib interMidiate V Package: 25kg/drum Erlotinib hydrochloride & Intermediates Erlotinib hydrochloride 183319-6
Cas:179688-29-0
Min.Order:1 Kilogram
FOB Price: $2.0 / 55.0
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
Cas:179688-29-0
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryProduct name Erlotinib Intermediates 6,7-bis-(2-Methoxyethoxy)-quinazolin-4(3h)-one CAS NO. 179688-29-0 Synonyms 6,7-bis-(2-Methoxyethoxy)-quinazolin-4(3h)-one
Cas:179688-29-0
Min.Order:5 Metric Ton
FOB Price: $1.0 / 2.0
Type:Other
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta
Cas:179688-29-0
Min.Order:10 Gram
Negotiable
Type:Other
inquiryHangzhou Huarong Pharm Co., Ltd. established since 2009 , has been always focusing on supplying products and services to our clients in the field of small molecule drug. Huarong Pharm has built platforms for the research, development and manufac
Cas:179688-29-0
Min.Order:1 Gram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:179688-29-0
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiry6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone CAS: 179688-29-0 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing i
Cas:179688-29-0
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:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:179688-29-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySuperiority We can customize and synthesize products that other suppliers may not be able to provide. Advantage cof, mof ligand manufacturer Product Detail bes
Cas:179688-29-0
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:179688-29-0
Min.Order:1 Kilogram
FOB Price: $20.0 / 50.0
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
Cas:179688-29-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
Cas:179688-29-0
Min.Order:0
Negotiable
Type:Manufacturers
inquiryLorcaserin(856681-05-5)is an orally administered agent and a selective 5-HT2C receptor agonist for the treatment of obesity. It had been approved for marketing in US by FDA on 27 June in 2012. In clinical studies, lorcaserin h
Cas:179688-29-0
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: 6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone Synonyms: 6,7-bis(2-Methoxyethoxy)-3,4-dihydroquinazolin-4-one;6,7-Bis-(2-methoxyethoxy)-4(3H)-quinazolinone;6,7-Bis-(2-Methoxyethoxy)quinazolin-4(3H)-one;6,7-bis(2-methoxyethoxy)-1H-qu
Cas:179688-29-0
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
Cas:179688-29-0
Min.Order:1 Kilogram
Negotiable
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:179688-29-0
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiry6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With ammonium hydroxide; tetrabutylammomium bromide for 0.0833333h; Time; Irradiation; | 99.2% |
With ammonium hydroxide; tetrabutylammomium bromide In dichloromethane at 20℃; Reagent/catalyst; | 99.2% |
With ammonium hydroxide; tetrabutylammomium bromide for 0.0833333h; Time; Sonication; | 99.2% |
With ammonium hydroxide; tetrabutyl ammonium fluoride at 20℃; for 0.25h; Time; Sonication; | 99.2% |
formamidine acetic acid
ethyl 2-amino-4,5-bis(2-methoxyethoxy)-benzoate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Stage #1: formamidine acetic acid; ethyl 2-amino-4,5-bis(2-methoxyethoxy)-benzoate In butan-1-ol at 80℃; for 5h; Inert atmosphere; Stage #2: In Isopropyl acetate for 1h; Reflux; | 98% |
In ethanol at 55℃; for 3h; Concentration; Temperature; Solvent; Green chemistry; | 98.5% |
In 2-methoxy-ethanol at 125℃; for 8h; | 63.5% |
6,7-di(2'-methoxyethoxy)quinazoline
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With peracetic acid; sulfuric acid In ethanol at 60℃; for 4h; | 93% |
Stage #1: 6,7-di(2'-methoxyethoxy)quinazoline With ammonium cerium (IV) nitrate; acetic acid In water Stage #2: With sodium hydroxide In water | 88% |
Methyl formate
2-amino-4,5-bis-(2-methoxyethoxy)-benzoic acid methyl ester
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With ammonia In methanol for 7h; Concentration; Reflux; | 92% |
formaldehyd
2-amino-4,5-bis(2-methoxyethyloxy)benzamide
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
In water at 130℃; for 24h; Temperature; | 92% |
tert-butylisonitrile
2-amino-4,5-bis(2-methoxyethyloxy)benzamide
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With chloro-trimethyl-silane In acetonitrile at 70℃; | 92% |
ethyl 2-amino-4,5-bis(2-methoxyethoxy)-benzoate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With ammonium formate In N,N-dimethyl-formamide at 160℃; | 79% |
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
With hydrogenchloride In water at 100 - 105℃; for 2h; | 71% |
With hydrogenchloride In water at 100 - 105℃; for 2h; |
ammonium formate
ethyl 2-amino-4,5-bis(2-methoxyethoxy)-benzoate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
In formamide at 160℃; for 3h; | 62% |
C13H19NO5
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: acetic anhydride / 110 °C 2.1: 85 percent / aq. nitric acid / acetic acid / 8 h / 45 - 50 °C 3.1: FeCl3; hydrazine hydrate / H2O; methanol / 3 h / Heating 3.2: 81 percent / HCl / H2O / 90 - 130 °C View Scheme |
3,4-bis(2-methoxyethoxy) benzonitrile
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: 85 percent / aq. nitric acid / acetic acid / 8 h / 45 - 50 °C 2.1: FeCl3; hydrazine hydrate / H2O; methanol / 3 h / Heating 2.2: 81 percent / HCl / H2O / 90 - 130 °C View Scheme | |
Multi-step reaction with 4 steps 1: nitric acid 2: dihydrogen peroxide 3: palladium on activated charcoal; ammonium formate 4: water / 24 h / 130 °C View Scheme | |
Multi-step reaction with 3 steps 1.1: nitric acid / dichloromethane / 12 h / 20 °C 2.1: pyrographite; iron(III) chloride; hydrazine hydrate / methanol / 4 h / Reflux 2.2: 12 h / Reflux 3.1: methanol / 8 h / Reflux View Scheme |
3,4-bis(2-methoxyethoxy)benzaldehyde
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: hydroxylamine hydrochloride; pyridine / methanol / Heating 2.1: acetic anhydride / 110 °C 3.1: 85 percent / aq. nitric acid / acetic acid / 8 h / 45 - 50 °C 4.1: FeCl3; hydrazine hydrate / H2O; methanol / 3 h / Heating 4.2: 81 percent / HCl / H2O / 90 - 130 °C View Scheme | |
Multi-step reaction with 4 steps 1: nitric acid / water 2: hydrogenchloride; iron / ethanol 3: ethanol / Reflux 4: peracetic acid; sulfuric acid / ethanol / 4 h / 60 °C View Scheme | |
Multi-step reaction with 5 steps 1: potassium permanganate; sodium hydroxide / water / 14.42 h / 0 - 40 °C 2: sulfuric acid / 5 h / 0 - 10 °C 3: nitric acid; sulfuric acid / chloroform / 1.5 h / 0 - 40 °C 4: iron; ammonium chloride; hydrogenchloride / water; ethanol / 15 h / 80 °C / Inert atmosphere 5: ammonia / methanol / 7 h / Reflux View Scheme | |
Multi-step reaction with 5 steps 1: hydroxylamine hydrochloride; acetic anhydride 2: nitric acid 3: dihydrogen peroxide 4: palladium on activated charcoal; ammonium formate 5: water / 24 h / 130 °C View Scheme | |
Multi-step reaction with 4 steps 1.1: formic acid; hydroxylamine hydrochloride; sodium formate / 8 h / 90 - 100 °C 2.1: nitric acid / dichloromethane / 12 h / 20 °C 3.1: pyrographite; iron(III) chloride; hydrazine hydrate / methanol / 4 h / Reflux 3.2: 12 h / Reflux 4.1: methanol / 8 h / Reflux View Scheme |
3,4-dihydroxybenzaldehyde
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: 98 percent / potassium carbonate / dimethylformamide / 100 °C 2.1: hydroxylamine hydrochloride; pyridine / methanol / Heating 3.1: acetic anhydride / 110 °C 4.1: 85 percent / aq. nitric acid / acetic acid / 8 h / 45 - 50 °C 5.1: FeCl3; hydrazine hydrate / H2O; methanol / 3 h / Heating 5.2: 81 percent / HCl / H2O / 90 - 130 °C View Scheme | |
Multi-step reaction with 6 steps 1: potassium carbonate; tetrabutylammomium bromide / N,N-dimethyl-formamide / 105 - 110 °C / Inert atmosphere 2: potassium permanganate; sodium hydroxide / water / 14.42 h / 0 - 40 °C 3: sulfuric acid / 5 h / 0 - 10 °C 4: nitric acid; sulfuric acid / chloroform / 1.5 h / 0 - 40 °C 5: iron; ammonium chloride; hydrogenchloride / water; ethanol / 15 h / 80 °C / Inert atmosphere 6: ammonia / methanol / 7 h / Reflux View Scheme | |
Multi-step reaction with 5 steps 1.1: sodium iodide / N,N-dimethyl-formamide / Reflux 2.1: formic acid; hydroxylamine hydrochloride; sodium formate / 8 h / 90 - 100 °C 3.1: nitric acid / dichloromethane / 12 h / 20 °C 4.1: pyrographite; iron(III) chloride; hydrazine hydrate / methanol / 4 h / Reflux 4.2: 12 h / Reflux 5.1: methanol / 8 h / Reflux View Scheme |
Ethyl protocatechuate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: potassium carbonate; tetrabutylammonium iodide / acetone / 120 h / Heating 2: acetic acid; nitric acid / 24 h / 20 °C 3: hydrogen / PtO2*H2O / methanol / 20 °C / 2585.74 Torr 4: 84 percent / 12 h / 165 - 170 °C View Scheme | |
Multi-step reaction with 4 steps 1: potassium carbonate; tetrabutylammonium iodide / acetone 2: acetic acid; nitric acid / 24 h / 20 °C 3: hydrogen / PtO2*H2O / methanol / 20 °C / 2585.74 Torr 4: 84 percent / 12 h / 165 - 170 °C View Scheme | |
Multi-step reaction with 4 steps 1: 68 percent / potassium carbonate; tetrabutylammonium iodide / acetone / 72 h / Heating 2: nitric acid; trifluoroacetic acid / CH2Cl2 / 20 °C 3: 94 percent / hydrogen / palladium on activated carbon / methanol 4: 62 percent / formamide / 3 h / 160 °C View Scheme |
3,4-bis(2-methoxyethoxy)benzoic acid ethyl ester
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: acetic acid; nitric acid / 24 h / 20 °C 2: hydrogen / PtO2*H2O / methanol / 20 °C / 2585.74 Torr 3: 84 percent / 12 h / 165 - 170 °C View Scheme | |
Multi-step reaction with 3 steps 1: nitric acid; trifluoroacetic acid / CH2Cl2 / 20 °C 2: 94 percent / hydrogen / palladium on activated carbon / methanol 3: 62 percent / formamide / 3 h / 160 °C View Scheme | |
Multi-step reaction with 3 steps 1: acetic acid; nitric acid / 0 °C 2: hydrogen; palladium on activated charcoal / methanol 3: 165 - 170 °C View Scheme |
2-nitro-4,5-bis(2-methoxyethoxy)benzoic acid ethyl ester
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogen / PtO2*H2O / methanol / 20 °C / 2585.74 Torr 2: 84 percent / 12 h / 165 - 170 °C View Scheme | |
Multi-step reaction with 2 steps 1: 94 percent / hydrogen / palladium on activated carbon / methanol 2: 62 percent / formamide / 3 h / 160 °C View Scheme | |
Multi-step reaction with 2 steps 1: hydrogen; palladium on activated charcoal / methanol 2: 165 - 170 °C View Scheme |
formamidine acetic acid
2-amino-4,5-bis-(2-methoxyethoxy)-benzoic acid methyl ester
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
In 2-methoxy-ethanol for 24h; Heating / reflux; | |
In ethanol Reflux; |
3-acetylenephenylamine
4-chloro-6,7-bis(2-methoxyethoxy)quinazoline
A
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
B
erlotinib hydrochloride
Conditions | Yield |
---|---|
Stage #1: 3-acetylenephenylamine; 4-chloro-6,7-bis(2-methoxyethoxy)quinazoline With pyridine In isopropyl alcohol at 80℃; for 1h; Stage #2: With hydrogenchloride In 1,4-dioxane; diethyl ether; chloroform at 20℃; for 1h; Product distribution / selectivity; | |
Stage #1: 3-acetylenephenylamine; 4-chloro-6,7-bis(2-methoxyethoxy)quinazoline With pyridine In isopropyl alcohol at 80℃; for 1h; Stage #2: With hydrogenchloride In 1,4-dioxane; diethyl ether; chloroform at 20℃; |
methyl 3,4-bis{[2-(methyloxy)ethyl]oxy}benzoate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: nitric acid; acetic anhydride; acetic acid / acetic acid / 0 - 5 °C 2: hydrogen / ethanol 3: ethanol / Reflux View Scheme | |
Multi-step reaction with 3 steps 1: nitric acid; sulfuric acid / chloroform / 1.5 h / 0 - 40 °C 2: iron; ammonium chloride; hydrogenchloride / water; ethanol / 15 h / 80 °C / Inert atmosphere 3: ammonia / methanol / 7 h / Reflux View Scheme |
methyl 4,5-bis(2-methoxyethoxy)-2-nitrobenzoate
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogen / ethanol 2: ethanol / Reflux View Scheme |
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
4-chloro-6,7-bis(2-methoxyethoxy)quinazoline
Conditions | Yield |
---|---|
With oxalyl dichloride In chloroform; N,N-dimethyl-formamide for 1.5h; Heating; | 98% |
With oxalyl dichloride In dichloromethane Solvent; Reagent/catalyst; Temperature; Reflux; Large scale; | 97% |
With thionyl chloride In N,N-dimethyl-formamide at 60℃; Temperature; Concentration; | 95.6% |
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
6,7-bis(2-methoxyethoxy)quinazoline-4(3H)-thione
Conditions | Yield |
---|---|
With pyridine; tetraphosphorus decasulfide for 15h; Reflux; | 97% |
With tetraphosphorus decasulfide In pyridine for 24h; Heating; | 95% |
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
3-acetylenephenylamine
erlotinib hydrochloride
Conditions | Yield |
---|---|
for 3h; Temperature; Reflux; Large scale; | 95.1% |
6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one
methanol
6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline
Conditions | Yield |
---|---|
Stage #1: 6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one With trichlorophosphate; N,N-dimethyl-formamide at 80℃; for 0.5h; Stage #2: methanol With potassium carbonate In toluene at 0 - 40℃; for 0.5h; Product distribution / selectivity; | 94% |
Stage #1: 6,7-bis(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one With trichlorophosphate; N,N-dimethyl-formamide at 80℃; for 0.5h; Stage #2: methanol With potassium carbonate In N,N-dimethyl-formamide; toluene at 0 - 40℃; Product distribution / selectivity; | 94% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View