天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

ChemicalBook--->CAS DataBase List--->153749-89-4

153749-89-4

153749-89-4 Structure

153749-89-4 Structure
IdentificationMore
[Name]

N-Boc-2-Cyanopiperidine
[CAS]

153749-89-4
[Synonyms]

(+/-)-1-N-BOC-2-CYANO-PIPERIDINE
1-N-BOC-2-CYANO-PIPERIDINE
2-CYANO-PIPERIDINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER
TERT-BUTYL2-CYANOPIPERIDINE-1-CARBOXYLATE
1-Piperidinecarboxylic acid, 2-cyano-, 1,1-dimethylethyl ester
1-N-BOC-2-CYANOPIPERDINE
1-BOC-2-CYANOPIPERIDINE 98+%
1-tert-Butoxycarbonyl-2-cyanopiperidine
N-Boc-2-Cyanopiperidine
[Molecular Formula]

C11H18N2O2
[MDL Number]

MFCD01861221
[Molecular Weight]

210.27
[MOL File]

153749-89-4.mol
Chemical PropertiesBack Directory
[Melting point ]

62-67℃
[Boiling point ]

325.3±35.0 °C(Predicted)
[density ]

1.07±0.1 g/cm3(Predicted)
[storage temp. ]

2-8°C
[form ]

Powder
[pka]

-4.85±0.40(Predicted)
[color ]

White to pale brown
[InChIKey]

LKAJZBMOVZIKHA-UHFFFAOYSA-N
[CAS DataBase Reference]

153749-89-4(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22-43
[Safety Statements ]

37
[RIDADR ]

UN3439
[WGK Germany ]

3
[HazardClass ]

6.1
[HS Code ]

2933399990
Hazard InformationBack Directory
[Description]

Tert-Butyl 2-cyanopiperidine-1-carboxylate is an enantioselective organometallic compound. It is a nitrile that reacts with electrophiles such as Grignard reagents and cyano to form an anion. This compound has two chiral centers, each of which can assume either the R or S configuration. The enantiomeric purity of tert-butyl 2-cyanopiperidine-1-carboxylate is greater than 99%. This compound has a low melting point and a half life of about 10 h in water, which makes it stable for use in organic synthesis. It is commonly used in science as a chiral auxiliary in asymmetric synthesis and as a catalyst for the conversion of epoxides to alcohols.
[Synthesis]

Acetonitrile (220 mL) and DMF (3.82 mL, 49.4 mmol) were added to a 500 mL round bottom flask equipped with a stir bar. Cooled the mixture down to -5 °C and added oxalyl chloride (24.7 mL, 49.4 mmol, 2 M dichloromethane). The resulting mixture was stirred for 15 min, followed by the addition of a solution of 2-carbamoyl-piperidine-1- carboxylic acid tert-butyl ester (9.4 g, 41.2 mmol) in acetonitrile (50 mL) and pyridine (8.3 mL, 103 mmol). The reaction mixture was left stirring at room temperature overnight. The reaction mixture was concentrated in vacuo and the residue was dissolved in ethyl acetate (300 mL). The organic phase was successively washed with water (300 mL) and brine (200 mL), dried (sodium sulfate), filtered, and concentrated in vacuo to isolate tert-Butyl 2-cyanopiperidine-1-carboxylate (8.44 g, 97percent) as a yellow solid.
tert-Butyl 2-cyanopiperidine-1-carboxylate
153749-89-4 suppliers list
Company Name: Shanghai Boc Chemical Co., Ltd.
Tel: 021-34975602; +8618721111801 , +8618721111801
Website: http://www.approvedhomemanagement.com/manufacturer/shanghai-boshi-pharmaceutical-technology-228/
Company Name: career henan chemical co
Tel: +86-0371-86658258 +8613203830695 , +8613203830695
Website: www.coreychem.com/
Company Name: Chongqing Chemdad Co., Ltd
Tel: +86-023-6139-8061 +86-86-13650506873 , +86-86-13650506873
Website: http://www.chemdad.com/
Company Name: Alchem Pharmtech,Inc.
Tel: 8485655694
Website: www.approvedhomemanagement.com/ShowSupplierProductsList454175/0.htm
Company Name: CONIER CHEM AND PHARMA LIMITED
Tel: +8618523575427 , +8618523575427
Website: http://www.conier.com/
Company Name: Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
Tel: +8613580539051 , +8613580539051
Website: www.yuhengpharm.com
Company Name: Finetech Industry Limited
Tel: +86-27-87465837 +8618971612321 , +8618971612321
Website: https://www.finetechnology-ind.com/
Company Name: Hefei Hirisun Pharmatech Co., Ltd
Tel: +8615056975894 , +8615056975894
Website: www.hirisunpharm.com
Company Name: Dayang Chem (Hangzhou) Co.,Ltd.
Tel: 571-88938639 +8617705817739 , +8617705817739
Website: https://www.dycnchem.com/
Company Name: CD Chemical Group Limited
Tel: +8615986615575 , +8615986615575
Website: http://www.codchem.com/
Company Name: Nextpeptide Inc
Tel: +86-0571-81612335 +8613336028439 , +8613336028439
Website: http://www.nextpeptide.com/
Company Name: changzhou huayang technology co., ltd
Tel: +8615250961469 , +8615250961469
Website: http://www.huayangchem.com/template/eabout.html
Company Name: Labnetwork lnc.
Tel: +86-27-50766799 +8618062016861 , +8618062016861
Website: www.labnetwork.com
Company Name: Hefei TNJ Chemical Industry Co.,Ltd.
Tel: +86-0551-65418684 +8618949823763 , +8618949823763
Website: www.tnjchem.com
Company Name: GIHI CHEMICALS CO.,LIMITED
Tel: +8618058761490 , +8618058761490
Website: https://www.gihichemicals.com/
Company Name: Protheragen-ING
Tel: +16313385890 , +16313385890
Website: https://www.protheragen-ing.com/
Company Name: LEAPCHEM CO., LTD.
Tel: +86-852-30606658
Website: www.leapchem.com
Company Name: Henan Fengda Chemical Co., Ltd
Tel: +86-371-86557731 +86-13613820652 , +86-13613820652
Website: http://www.fdachem.com
Tags:153749-89-4 Related Product Information
886766-60-5 127799-54-6 120737-78-2 797038-34-7 144688-70-0 107-71-1 540-88-5 6317-18-6 52-86-8 25895-60-7 7085-85-0 75-65-0 372-09-8 915-30-0 85363-04-8 91419-53-3 228244-04-0 91419-52-2