Výsledky vyhledávání - "Shaun Wei Yong Koh"

Silver Triflate Catalyzed Cyclopropyl Carbinol Rearrangement for Benzo[b]oxepine and 2H-Chromene Synthesis

Autor: Wan Teng Teo, Benjamin James Ayers, Chung-Hang Duncan Leung, Dik‐Lung Ma, Philip Wai Hong Chan, Bo Ra Lee, Shaun Wei Yong Koh

Publikováno v: European Journal of Organic Chemistry. 2015:4447-4456

An efficient AgOTf-catalyzed (TfO = trifluoromethanesulfonate) cyclopropyl carbinol rearrangement for the synthesis of benzo[b]oxepines and 2H-chromenes is reported by starting from 2-[cyclopropyl(hydroxy)methyl]phenols. The reactions proved to be ge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d79f2ba05bf66cace7e7e1e0c790b41
https://doi.org/10.1002/ejoc.201500374

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Gold-Catalyzed Benzannulation of 5-Hydroxy-3-oxoalk-6-ynoate Esters to o-Phenolic Esters

Autor: Shaun Wei Yong Koh, Philip Wai Hong Chan, Wan Teng Teo, Charmaine Jia Huan Ng, Weidong Rao

Publikováno v: Organic Letters. 16:1248-1251

A synthetic method to prepare o-phenolic esters efficiently by gold(I)-catalyzed benzannulation of 5-hydroxy-3-oxoalk-6-ynoate esters under mild conditions that did not require the exclusion of air or moisture is described.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f30f2f7d7526da92a734573662518100
https://doi.org/10.1021/ol5002363

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ChemInform Abstract: Silver Triflate Catalyzed Cyclopropyl Carbinol Rearrangement for Benzo[b]oxepine and 2H-Chromene Synthesis

Autor: Bo Ra Lee, Philip Wai Hong Chan, Dik‐Lung Ma, Shaun Wei Yong Koh, Chung-Hang Duncan Leung, Wan Teng Teo, Benjamin James Ayers

Publikováno v: ChemInform. 46

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26363ea8358d2723c7c796ff6029ec26
https://doi.org/10.1002/chin.201546194

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ChemInform Abstract: Gold-Catalyzed Benzannulation of 5-Hydroxy-3-oxoalk-6-ynoate Esters to o-Phenolic Esters

Autor: Wan Teng Teo, Shaun Wei Yong Koh, Weidong Rao, Philip Wai Hong Chan, Charmaine Jia Huan Ng

Publikováno v: ChemInform. 45

An advantage of the reported method consists in the mild reaction conditions which do not require the exclusion of air or moisture.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2be3674be51d214ef3b1bf111c1ea68e
https://doi.org/10.1002/chin.201430075

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