Asymmetric Induction in the Michael Reaction by Means of Chiral Phase-transfer Catalysts derived from Cinchona and Ephedra Alkaloids

DOI: 10.1039/P19810000547

Source and publish data:

Journal of the Chemical Society. Perkin transactions I p. 547 - 552 (1981)

Update date:2022-07-29

Topics:

Authors:

Colonna, Stefano

Re, Alberto

Wynberg, Hans

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/P19810000547

Asymmetric induction in the Michael reaction has been achieved using alkaloidonium salts in a two-phase system with optical yields of up to 36 and 26percent in the addition to αβ-unsaturated ketones of thiols and nitroalkanes respectively.The presence of a hydroxy-group β to the 'onium function is essential to achieve substantial asymmetric syntheses.

Full text of DOI:10.1039/P19810000547

View Article Online / Journal Homepage / Table of Contents for this issue

View Article Online

Products guided by the article

Product name:(+)-p-tolyl vinyl sulphoxide

Cas No:110455-66-8

R&D Labs maybe for 110455-66-8

Xi'an Costrong Pharmaceutical Co., Ltd.

Contact:029- 68576496

Address:Room 2004,Shuibao Building,No.190,South Erhuan Rd, Yanta District,Xi'an,Shaan Xi,China
Sino Rarechem Labs Co.Ltd

Contact:+86-0512-62857507

Address:Boji Science Park, No1688C,Taishan road, Suzhou ,China
Tractus Company Limited

Contact:+852-8198 2399

Address:9E, Leapont Industrial Building, 18-28 Wo Liu Hang Road, Shatin, New Territories, Hong Kong
JIANGXI AIFEIMU TECHNOLOGY CO.，LTD

Contact:+86-570-6040289

Address:FINECHEMICAL PARK,ZIBU TOWN,WANNIAN COUNTY,JIANGXI PROV.,CHINA,ZIP
Shenzhen JYMed Technology Co.,Ltd.

website:http://www.jymedtech.com

Contact:+86-755-26612112

Address:1#8,9/F, Biomedicine innovation Industrial Park, No.14, Jinhui Road, Pingshan Sistrict, Shenzhen, China

Relevant to this article

[¹⁸F]Fluoropropylsulfonyl chloride: A new reagent for radiolabeling primary and secondary amines for PET imaging

Doi:10.1002/jlcr.1466
(2008)
Wacker- type oxidation of alkynes into 1, 2-diketones using molecular oxygen

Doi:10.1021/ol900344g
(2009)
Oligonucleotide analogues with integrated bases and backbones. Part 19: Gelation of organic solvents by self-complementary A*[s]U(*) dinucleosides

Doi:10.1002/hlca.200890236
(2008)
Formation of pyrazol-1,3,4-thiadiazoles through 1,3-dipolar cydoaddltlons of 3-thioxo-[1,2,4]-triazepin-5-one with nitrilimines: An experimental and computational study

Doi:10.1002/poc.1421
(2009)
DERIVATE DES BOROLS VII. (η⁵-BOROL)RHODIUM-KOMPLEXE UND NUCLEOPHILER ABBAU VON μ-(η⁵-1-PHENYLBOROL)-BIS<η⁵-1-PHENYLBOROL)RHODIUM>

Doi:10.1016/0022-328X(86)80275-3
(1986)
Carbon dioxide induced phase switching for homogeneous-catalyst recycling

Doi:10.1002/anie.200804729
(2009)

Article Doi