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新虫 (初入文坛)

应助: 0 (幼儿园)
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虫号: 2981064
注册: 2014-02-20
专业: 有机合成

[交流] 新加坡国立大学（NUS）化学系KOH Ming Joo (许民瑜)教授课题组招博士生及博后

受朋友委托帮他发布招聘信息，具有有机化学或者金属有机化学背景的，想去新加坡读博或者博后的可以了解下，朋友毕业于Hoveyda组，目前仍在Hoveyda继续博士后，今年6月份将加入新加坡国立大学化学系任助理教授。五年PhD里4篇nature,1篇science！即将在NUS开组，想在有机化学领域有所追求的同学一定不要错过这个机会！

Prof Dr Koh: 2012–2018: Ph.D. & Post-Doc in Organic Chemistry, Boston College, MA, USA
2008–2012: B.Sc. in Chemistry & Biological Chemistry, First Class Honors, Nanyang Technological University, Singapore

We have multiple funded positions available from July 2018 onwards for individuals who are interested in pursuing Ph.D. or post-doctoral studies in Singapore. Annual base salary for post-doctoral research fellows is approximately S$48,000 (negotiable). Talented and self-motivated chemists with a strong background in synthetic organic chemistry, organometallic chemistry, medicinal chemistry, polymer chemistry and/or natural product synthesis are welcome to join us. Good English proficiency and communication skills are mandatory. Please send an electronic copy of your curriculum vitae (CV), research summary and contact information of referees to Dr. Koh at mjkoh87@gmail.com. Various funding opportunities (Ph.D. and post-docs) are available in Singapore. For further enquiries, please contact Dr. Koh via email. For more information on the chemistry department, please visit: https://www.chemistry.nus.edu.sg

Research Interests

Stereoselective catalysis has revolutionized the art of chemical synthesis and tremendous progress has been made in this area over the last few decades. Despite these advances, many existing protocols suffer from poor applicability and often rely on catalyst systems that contain increasingly expensive noble metals. The high cost and limited availability of these metals makes it compelling to search for more economical and sustainable alternatives.

The key objective of our program is to develop sustainable and enabling catalytic solutions that address critical and unresolved problems in chemical synthesis. Our research approach will leverage creative, direct and unprecedented disconnections of complex target molecules to fuel our efforts in devising practical stereoselective methods that utilize abundant, biocompatible and inexpensive catalysts. Insights gained from the study of reaction mechanism will aid us in designing new catalyst systems that promote transformations to facilitate economically and environmentally viable preparation of important compounds for the chemical, pharmaceutical and polymer industries.
Current topics of interest include: (a) development of catalytic transformations involving organohalides for rapid assembly of bioactive natural products and pharmaceuticals, (b) design and preparation of novel fluorinated building blocks for medicinal and polymeric material applications and (c) discovery of new reactivity patterns in synergistic catalysis for efficient synthesis and diversification of therapeutic agents. We cordially welcome collaborations in all areas of research including chemical biology and materials science.

Research Publications

1. Nguyen, T. T.*; Koh, M. J.*; Mann, T. J.; Schrock, R. R.; Hoveyda, A. H. “Synthesis of E- or Z-Trisubstituted Alkenes by Catalytic Cross-Metathesis” Nature 2017, 552, 347. (*these authors contributed equally).
2. Koh, M. J.; Nguyen, T. T.; Lam, J. K.; Torker, S.; Hyvl, J.; Schrock, R. R.; Hoveyda, A. H. “Molybdenum Chloride Catalysts for Z-Selective Olefin Metathesis Reactions” Nature 2017, 542, 80.
3. Shen, X.; Nguyen, T. T.; Koh, M. J.; Xu, D.; Speed, A.W. H.; Schrock, R. R.; Hoveyda, A. H. “Kinetically E-Selective Macrocyclic Ring-Closing Metathesis” Nature 2017, 541, 380.
4. Nguyen, T. T.; Koh, M. J.; Shen, X.; Romiti, F.; Schrock, R. R.; Hoveyda, A. H. “Kinetically Controlled E-Selective Catalytic Olefin Metathesis” Science 2016, 352, 569. (highlighted by C&EN News).
5. Koh, M. J.; Nguyen, T. T.; Zhang, H.; Schrock, R. R.; Hoveyda, A. H. “Direct Synthesis of Z-Alkenyl Halides by Catalytic Cross-Metathesis” Nature 2016, 531, 459. (highlighted by Nature, C&EN News, Organic Chemistry Portal, SYNFACTS, Synfacts 2016, 12, 603).
6. Torker, S.; Koh, M. J.; Khan, R. K. M.; Hoveyda, A. H. “Regarding a Persisting Puzzle in Olefin Metathesis with Ru Complexes: Why are Transformations of Alkenes with a Small Substituent Z-selective?” Organometallics 2016, 35, 543.
7. Koh, M. J.; Khan, R. K. M.; Torker, S.; Yu, M.; Mikus, M. S.; Hoveyda, A. H. “High-Value Alcohols and Higher-Oxidation-State Compounds by Catalytic Z-Selective Cross-Metathesis” Nature 2015, 517, 181. (highlighted by SYNFACTS, Synfacts 2015, 11, 387).
8. Koh, M. J.; Khan, R. K. M.; Torker, S.; Hoveyda, A. H. “Broadly Applicable Z- and Diastereoselective Ring-Opening/Cross-Metathesis Catalyzed by a Dithiolate Ru Complex” Angew. Chem. Int. Ed. 2014, 53, 1968.
9. Teo, W.; Rao, W.; Koh, M. J.; Chan, P. W. H. “Gold-Catalyzed Domino Aminocyclization/1,3-Sulfonyl Migration of N-Substituted-N-Sulfonyl-aminobut-3-yn-2-ols to 1-Substituted-3-Sulfonyl-1H-pyrroles” J. Org. Chem. 2013, 78, 7508.
10. Rao, W.; Koh, M. J.*; Li, D.*; Hirao, H.; Chan, P. W. H. “Gold-Catalyzed Cycloisomerization of 1,6-Diyne Carbonates and Esters to 2,4a-Dihydro-1H-fluorenes” J. Am. Chem. Soc. 2013, 135, 7926. (*these authors contributed equally).
11. Rao, W.; S.; Koh, M. J.; Chan, P. W. H. “Gold-Catalyzed Cycloisomerization of 1,7-Enyne Esters to Structurally Diverse cis-1,2,3,6-Tetrahydropyridin-4-yl Ketones” J. Org. Chem. 2013, 78, 3183.
12. Sze, E. M. L.; Koh, M. J.*; Tjia, Y. M.*; Rao, W.; Chan, P. W. H. “Synthesis of (Z)-1,2-Dihydro-1-tosylbenzoazepin-3-ones by Two-step, One-Pot Gold-Catalyzed Tandem Heterocyclization/Petasis-Ferrier Rearrangement of 2-(N-(Prop-2-ynyl)-N-tosylamino)benzaldehydes” Tetrahedron 2013, 69, 7471. (*these authors contributed equally). (highlighted by SYNFACTS, Synfacts 2013, 9, 945).
13. Rao, W.; Koh, M. J.; Kothandaraman, P.; Chan, P. W. H. “Gold-Catalyzed Cycloisomerization of 1,7-Diyne Benzoates to Indeno[1,2-c]azepines and Azabicyclo[4.2.0]octa-1(8),5-dines” J. Am. Chem. Soc. 2012, 134, 10811. (highlighted by SYNFACTS, Synfacts 2012, 9, 952).
14. Sze, E. M. L.; Rao, W.; Koh, M. J.; Chan, P. W. H. “Gold-Catalyzed Tandem Intramolecular Heterocyclization/Petasis–Ferrier Rearrangement of 2-(Prop-2-ynyloxy)benzaldehydes as an Expedient Route to Benzooxepin-3(2H)-ones” Chem. Eur. J. 2011, 17, 1437.

Patents

1. Hoveyda, A. H.; Nguyen, T. T.; Koh, M. J.; Xu, C.; Torker, S. “Method of Preparing Trisubstituted Ethylene Compounds,” U.S. Patent Application No. 62/562,224, filed September 22, 2017.
2. Hoveyda, A. H.; Koh, M. J.; Nguyen, T. T.; Schrock, R. R.; Hyvl, J. “Halogen-Containing Metathesis Catalysts and Methods Thereof,” U.S. Patent Application No. 62/363,066, filed July 15, 2016.
3. Hoveyda, A. H.; Zhang, H.; Koh, M. J.; Schrock, R. R. “Metathesis Catalysts and Methods Thereof,” PCT Int. Appl. WO2016073750 A1, May 12, 2016.
4. Hoveyda, A. H.; Khan, R. K. M.; Torker, S.; Koh, M. J. “Catalysts for Efficient Z-Selective Metathesis,” PCT Int. Appl. WO2014201300 A1, December 18, 2014.