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Dayang Chem (Hangzhou) Co.,Ltd.

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

4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-, (3aR,4S,7R,7aS)-rel- Manufacturer/High quality/Best price/In stock

Cas:29745-04-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome 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

High quality Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic Anhydride supplier in China

Cas:29745-04-8

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Hebei Nengqian Chemical Import and Export Co., LTD

With 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

EXO-7-OXABICYCLO[2.2.1]HEPTANE-2,3-DICARBOXYLIC ANHYDRIDE CAS:29745-04-8

Cas:29745-04-8

Min.Order:1 Kilogram

FOB Price: $15.0 / 25.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

China Gold Supplier CAS 29745-04-8 with best quality

Cas:29745-04-8

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

EXO-7-OXABICYCLO[2.2.1]HEPTANE-2,3-DICARBOXYLIC ANHYDRIDE CAS29745-04-8

Cas:29745-04-8

Min.Order:1 Kilogram

FOB Price: $289.0 / 499.0

Type:Trading Company

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Shanghai Upbio Tech Co.,Ltd

1.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

4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-, (3aR,4S,7R,7aS)-rel-

Cas:29745-04-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Henan Wentao Chemical Product Co., Ltd.

Henan 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 NO.:29745-04-8

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best 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

Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic Anhydride

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Manufacturers

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Chengdu Biopurify Phytochemicals Ltd.

Chengdu Biopurify Phytochemicals Ltd. is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medic

Norcantharidin

Cas:29745-04-8

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Hangzhou J&H Chemical Co., Ltd.

J&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

4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-, (3aR,4S,7R,7aS)-rel-

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

EXO-7-OXABICYCLO[2.2.1]HEPTANE-2,3-DICARBOXYLIC ANHYDRIDE

Cas:29745-04-8

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

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Xiamen Jenny Chemical Technology Co., Ltd.

GMP 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,

Norcantharidin

Cas:29745-04-8

Min.Order:1 Milligram

Negotiable

Type:Trading Company

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GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

exo-7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Wuhan Fortuna Chemical Co.,Ltd

good quality and cheap priceAppearance:powder Package:1kg,5kg,25kg Application:as raw material Transportation:by sea/air/courier

Norcantharidin

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

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Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec Norcantharidin 5g

Cas:29745-04-8

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

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Henan Allgreen Chemical Co.,Ltd

high 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

Norcantharidin

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Manufacturers

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Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic Anhydride

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Manufacturers

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Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac

Norcantharidin

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Manufacturers

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Antimex Chemical Limied

Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic AnhydrideAppearance:white to off-white crystalline powder Storage:Keep away of light,cool place Package:25kg/drum;200kg/drum Application:Organic Intermediates Transportation:Sea/air/courier

Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic Anhydride

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

rel-(3aR,4R,7S,7aS)-Hexahydro-4,7-epoxyisobenzofuran-1,3-dione

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

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Guangdong Juda Chemical Industrial Co.,Limited

Factory supply high purity low priceAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China

Norcantharidin CAS No.29745-04-8

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

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Hangzhou Fandachem Co.,Ltd

4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-, (3aR,4S,7R,7aS)-rel- cas 29745-04-8Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low priceAppearance:solid Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

Norcantharidin

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Yuanye Bio-Technology Co., Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:1g Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port

Exo-7-Oxabicyclo[2.2.1]Heptane-2,3-Dicarboxylic Anhydride

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

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Hunan Russell Chemicals Technology Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

Norcantharidin 29745-04-8

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

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ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

EXO-7-OXABICYCLO[2.2.1]HEPTANE-2,3-DICARBOXYLIC ANHYDRIDE

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei youze Biotechnology Co.,Ltd

1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment terms accepted (Btc;MoneyGram;WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery (3-10 DAYS fast deli

Norcantharidin CAS:29745-04-8 the cheapest price

Cas:29745-04-8

Min.Order:1 Kilogram

FOB Price: $7.0 / 10.0

Type:Trading Company

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Jilin haofei import and export trade Co.,Ltd

Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right

Exo-7-Oxabicyclo[2.2.1]Heptene-2,3-Dicarboxylic Anhydride CAS NO.29745-04-8

Cas:29745-04-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chengdu Alfa Biotechnology Co.,Ltd.

We are a leading supplier of phytochemical reference standards.We are confidant that we will assure you of any quality problems and provide you with competitive price.In addition, if you ordered, we can send you products first with Net 30 days paym

Norcantharidin

Cas:29745-04-8

Min.Order:20 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride
6118-51-0

exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal; water In tetrahydrofuran Ambient temperature;100%
With hydrogen; palladium on activated charcoal In tetrahydrofuran at 23℃;100%
With hydrogen; palladium on activated charcoal In tetrahydrofuran at 20℃; for 4h;100%
furan
110-00-9

furan

maleic anhydride
108-31-6

maleic anhydride

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
In toluene at 80℃; for 6h;87%
With hydrogen; palladium Multistep reaction;
Stage #1: furan; maleic anhydride In diethyl ether at 20℃; for 24h; Diels-Alder addition;
Stage #2: With hydrogen; palladium on activated charcoal under 3040.2 Torr; for 72h; Further stages.;
endothall
28874-46-6

endothall

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
Erhitzen unter vermindertem Druck;
With acetyl chloride for 1.5h; Heating;
durch Sublimation unter vermindertem Druck;
exo-cis-3.6-oxido-Δ4-tetrahydrophthalic acid-anhydride

exo-cis-3.6-oxido-Δ4-tetrahydrophthalic acid-anhydride

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
With colloid; sodium carbonate; palladium Hydrogenation;
2,3-dimethylfuran
14920-89-9

2,3-dimethylfuran

maleic anhydride
108-31-6

maleic anhydride

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
palladium-carbon In dichloromethane; ethyl acetate
palladium-carbon In dichloromethane; ethyl acetate1.69 g (8.61 mmol, 84%)
4,10-dioxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
5426-09-5, 6118-51-0, 6766-44-5

4,10-dioxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In ethyl acetate; acetone under 2585.81 Torr; for 16h;7.2 g
SEC-BUTYLAMINE
33966-50-6

SEC-BUTYLAMINE

norcantharidin
29745-04-8

norcantharidin

C12H17NO3

C12H17NO3

Conditions
ConditionsYield
With triethylamine In toluene for 36h; Heating;98%
methanol
67-56-1

methanol

norcantharidin
29745-04-8

norcantharidin

(1S,2R,3S,4R)-3-(methoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid
130464-52-7

(1S,2R,3S,4R)-3-(methoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
With C28H27F6N3O3S In tetrahydrofuran at 25℃; for 26h; Inert atmosphere;98%
With 1-(3,5-bis(trifluoromethyl)phenyl)-3-((1S,2R)-3-(tert-butyldimethylsilyloxy)-2-(dimethylamino)-1-(4-nitrophenyl)propyl)thiourea In tert-butyl methyl ether at 20℃; for 96h; Inert atmosphere; optical yield given as %ee; enantioselective reaction;88%
With C26H34F6N4O3SSi In tert-butyl methyl ether at 20℃; for 48h; Inert atmosphere; enantioselective reaction;85%
N-(m-chlorophenyl)piperazine
6640-24-0

N-(m-chlorophenyl)piperazine

norcantharidin
29745-04-8

norcantharidin

(7-oxabicyclo[2.2.1]heptane-2,3-diyl)bis(4-(3-chlorophenyl)piperazin-1-yl)methanone

(7-oxabicyclo[2.2.1]heptane-2,3-diyl)bis(4-(3-chlorophenyl)piperazin-1-yl)methanone

Conditions
ConditionsYield
Stage #1: N-(m-chlorophenyl)piperazine; norcantharidin With dmap; triethylamine In dichloromethane at 20℃; Inert atmosphere;
Stage #2: With diisopropyl-carbodiimide In dichloromethane at 20℃; Inert atmosphere; Cooling with ice;
98%
norcantharidin
29745-04-8

norcantharidin

Endothal tioanhydride

Endothal tioanhydride

Conditions
ConditionsYield
With sodium sulfide; cetyltrimethylammonim bromide In dichloromethane; water97%
L-histidine
71-00-1

L-histidine

norcantharidin
29745-04-8

norcantharidin

L-histidine norcantharimide

L-histidine norcantharimide

Conditions
ConditionsYield
In ethanol; water for 48h; Reflux;97%
(2,3-difluoro-phenyl)-methanol
75853-18-8

(2,3-difluoro-phenyl)-methanol

norcantharidin
29745-04-8

norcantharidin

C15H14F2O5

C15H14F2O5

Conditions
ConditionsYield
With dmap In dichloromethane at 60℃; for 14h; Sealed tube; Inert atmosphere;97%
1-methyl-piperazine
109-01-3

1-methyl-piperazine

norcantharidin
29745-04-8

norcantharidin

3-(4-methylpiperazine-1-carbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

3-(4-methylpiperazine-1-carbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
at 85.1 - 97.1℃; for 21h; Temperature; Inert atmosphere; Large scale;95.4%
In tetrahydrofuran at 20℃;
methanol
67-56-1

methanol

norcantharidin
29745-04-8

norcantharidin

Conditions
ConditionsYield
for 18h; Heating;95.1%
for 3.5h; Reflux;95%
for 3.5h; Reflux;95%
Heating;
D-histidin
351-50-8

D-histidin

norcantharidin
29745-04-8

norcantharidin

D-histidine norcantharimide

D-histidine norcantharimide

Conditions
ConditionsYield
In ethanol; water for 48h; Reflux;95%
4-(4-fluorophenyl)thiosemicarbazide
330-94-9

4-(4-fluorophenyl)thiosemicarbazide

norcantharidin
29745-04-8

norcantharidin

1-(1,3-dioxooctahydro-2H-4,7-epoxyisoindol-2-yl)-3-(4-fluorophenyl)thiourea

1-(1,3-dioxooctahydro-2H-4,7-epoxyisoindol-2-yl)-3-(4-fluorophenyl)thiourea

Conditions
ConditionsYield
In chloroform for 1h; Reflux;95%
1-(4-aminobutyl)-4-(1,2-benzisothiazol-3-yl)piperazine
105981-34-8

1-(4-aminobutyl)-4-(1,2-benzisothiazol-3-yl)piperazine

norcantharidin
29745-04-8

norcantharidin

(1R,2S,6R,7S)-4-[4-(4-Benzo[d]isothiazol-3-yl-piperazin-1-yl)-butyl]-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

(1R,2S,6R,7S)-4-[4-(4-Benzo[d]isothiazol-3-yl-piperazin-1-yl)-butyl]-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With pyridine for 4.5h; Heating;94.8%
isobutylamine
78-81-9

isobutylamine

norcantharidin
29745-04-8

norcantharidin

N2-isobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

N2-isobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

Conditions
ConditionsYield
Stage #1: isobutylamine; norcantharidin With dmap In dichloromethane at 20℃; for 1h; Inert atmosphere;
Stage #2: With ammonia; diisopropyl-carbodiimide In dichloromethane at -34 - 20℃; for 4h; Inert atmosphere; Cooling with ice;
94%
N-butylamine
109-73-9

N-butylamine

norcantharidin
29745-04-8

norcantharidin

N-butyl-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide
91645-06-6

N-butyl-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide

Conditions
ConditionsYield
With triethylamine In toluene for 36h; Heating;93%
(i), (ii) (heating); Multistep reaction;
p-aminoethylbenzoate
94-09-7

p-aminoethylbenzoate

norcantharidin
29745-04-8

norcantharidin

(1S,2R,3S,4R)-3-(4-Ethoxycarbonyl-phenylcarbamoyl)-7-oxa-bicyclo[2.2.1]heptane-2-carboxylic acid

(1S,2R,3S,4R)-3-(4-Ethoxycarbonyl-phenylcarbamoyl)-7-oxa-bicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 48h;93%
N-ethylthiosemicarbazide
13431-34-0

N-ethylthiosemicarbazide

norcantharidin
29745-04-8

norcantharidin

1-(1,3-dioxooctahydro-2H-4,7-epoxyisoindol-2-yl)-3-ethylthiourea

1-(1,3-dioxooctahydro-2H-4,7-epoxyisoindol-2-yl)-3-ethylthiourea

Conditions
ConditionsYield
In chloroform for 1h; Reflux;93%
benzylamine
100-46-9

benzylamine

norcantharidin
29745-04-8

norcantharidin

cis-4-benzyl-10-oxa-4-azatricyclo<5.2.1.0>decane-3,5-dione
7802-31-5

cis-4-benzyl-10-oxa-4-azatricyclo<5.2.1.0>decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene for 36h; Heating;91%
(i), (ii) (heating); Multistep reaction;
With acetyl chloride 1.) THF, 4 h, 2.) reflux, 4 h; Yield given. Multistep reaction;
3-amino-2-methoxypropan-1-ol
858834-75-0

3-amino-2-methoxypropan-1-ol

norcantharidin
29745-04-8

norcantharidin

N-2-methoxypropyl-1-ol-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide

N-2-methoxypropyl-1-ol-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide

Conditions
ConditionsYield
With triethylamine In toluene for 36h; Heating / reflux;91%
isobutylamine
78-81-9

isobutylamine

norcantharidin
29745-04-8

norcantharidin

C12H17NO3

C12H17NO3

Conditions
ConditionsYield
With triethylamine In 5,5-dimethyl-1,3-cyclohexadiene at 20 - 120℃; for 4.5h; Inert atmosphere;90%
diisobutylamine
110-96-3

diisobutylamine

norcantharidin
29745-04-8

norcantharidin

N2,N2-diisobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

N2,N2-diisobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

Conditions
ConditionsYield
Stage #1: diisobutylamine; norcantharidin With dmap In dichloromethane at 20℃; for 1h; Inert atmosphere;
Stage #2: With ammonia; diisopropyl-carbodiimide In dichloromethane at -34 - 20℃; for 4h; Inert atmosphere; Cooling with ice;
90%
diisobutylamine
110-96-3

diisobutylamine

isobutylamine
78-81-9

isobutylamine

norcantharidin
29745-04-8

norcantharidin

N2,N2,N3-triisobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

N2,N2,N3-triisobutyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxamide

Conditions
ConditionsYield
Stage #1: diisobutylamine; norcantharidin With dmap In dichloromethane at 20℃; Inert atmosphere;
Stage #2: isobutylamine With diisopropyl-carbodiimide In dichloromethane for 5h; Inert atmosphere; Cooling with ice;
90%
2-amino-benzthiazole
136-95-8

2-amino-benzthiazole

norcantharidin
29745-04-8

norcantharidin

3-(benzo[d]thiazol-2-ylcarbamoyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

3-(benzo[d]thiazol-2-ylcarbamoyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 20℃; for 14h;89%
ethanol
64-17-5

ethanol

norcantharidin
29745-04-8

norcantharidin

3-(ethoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid
109282-40-8, 115122-59-3

3-(ethoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
for 12h; Reflux;88.9%
1,4-bis(bromomagnesium)butane
23708-47-6

1,4-bis(bromomagnesium)butane

norcantharidin
29745-04-8

norcantharidin

2',6'-exo-spirodioxatricyclo<5.2.1.02,6>decan-3'-one>
82639-67-6

2',6'-exo-spirodioxatricyclo<5.2.1.02,6>decan-3'-one>

Conditions
ConditionsYield
In tetrahydrofuran for 2h;88%
methanol
67-56-1

methanol

norcantharidin
29745-04-8

norcantharidin

(-)-2-exo-(methoxycarbonyl)-7-oxabicyclo<2.2.1>heptane-3-exo-carboxylic acid
104485-83-8

(-)-2-exo-(methoxycarbonyl)-7-oxabicyclo<2.2.1>heptane-3-exo-carboxylic acid

Conditions
ConditionsYield
With 1,4-bis(dihydroquinidinyl)anthraquinone In diethyl ether at -20℃;88%
With hydroquinidine (anthraquinone-1,4-diyl) diether In diethyl ether at -20℃; for 120h; optical yield given as %ee; enantioselective reaction;88 %Spectr.
Methyl 3-aminobenzoate
4518-10-9

Methyl 3-aminobenzoate

norcantharidin
29745-04-8

norcantharidin

(1S,2R,3S,4R)-3-(3-Methoxycarbonyl-phenylcarbamoyl)-7-oxa-bicyclo[2.2.1]heptane-2-carboxylic acid

(1S,2R,3S,4R)-3-(3-Methoxycarbonyl-phenylcarbamoyl)-7-oxa-bicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
In tetrahydrofuran at 20℃;88%
m,p-dichloroaniline
95-76-1

m,p-dichloroaniline

norcantharidin
29745-04-8

norcantharidin

3-((3,4-dichlorophenyl)carbamoyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

3-((3,4-dichlorophenyl)carbamoyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 20℃; for 14h;88%
norcantharidin
29745-04-8

norcantharidin

endothall
28874-46-6

endothall

Conditions
ConditionsYield
With sodium hydroxide; water for 24h; Ambient temperature;87%
With potassium hydroxide
With water
hexan-1-amine
111-26-2

hexan-1-amine

norcantharidin
29745-04-8

norcantharidin

2-hexyl-(3at,7at)-hexahydro-4r,7c-epioxido-isoindole-1,3-dione
93760-50-0

2-hexyl-(3at,7at)-hexahydro-4r,7c-epioxido-isoindole-1,3-dione

Conditions
ConditionsYield
With triethylamine In toluene for 36h; Heating;87%
(i), (ii) (heating); Multistep reaction;

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