| LDR | | 02108nam u200421 4500 |
| 001 | | 000000419513 |
| 005 | | 20190215163733 |
| 008 | | 181129s2018 |||||||||||||||||c||eng d |
| 020 | |
▼a 9780438353596 |
| 035 | |
▼a (MiAaPQ)AAI10841168 |
| 035 | |
▼a (MiAaPQ)umn:19473 |
| 040 | |
▼a MiAaPQ
▼c MiAaPQ
▼d 247004 |
| 082 | 0 |
▼a 540 |
| 100 | 1 |
▼a Fan, Yang. |
| 245 | 10 |
▼a Electrostatically Enhanced Thioureas: Synthesis, Reactivity and Selectivity. |
| 260 | |
▼a [S.l.]:
▼b University of Minnesota.,
▼c 2018. |
| 260 | 1 |
▼a Ann Arbor:
▼b ProQuest Dissertations & Theses,
▼c 2018. |
| 300 | |
▼a 207 p. |
| 500 | |
▼a Source: Dissertation Abstracts International, Volume: 80-01(E), Section: B. |
| 500 | |
▼a Adviser: Steven R. Kass. |
| 502 | 1 |
▼a Thesis (Ph.D.)--University of Minnesota, 2018. |
| 520 | |
▼a Hydrogen bonding exhibits its importance in enzyme-catalyzed chemical transformations, naturally occurring three-dimensional architectures and molecular recognition. In recent years, synthetic chemists have successfully exploited hydrogen bonds |
| 520 | |
▼a Thiourea derivatives are among the most common and widely-developed hydrogen bond catalysts. Impressive results in terms of both yields and enantioselectivities in asymmetric syntheses have been obtained. A key feature in their success is the ab |
| 520 | |
▼a The work described in this thesis focuses on the development of a class of positively charged acidity-enhanced thiourea catalysts which make use of an alkylated pyridinium substituent and an appropriate non-coordinating counteranion to enhance t |
| 590 | |
▼a School code: 0130. |
| 650 | 4 |
▼a Chemistry. |
| 650 | 4 |
▼a Organic chemistry. |
| 690 | |
▼a 0485 |
| 690 | |
▼a 0490 |
| 710 | 20 |
▼a University of Minnesota.
▼b Chemistry. |
| 773 | 0 |
▼t Dissertation Abstracts International
▼g 80-01B(E). |
| 773 | |
▼t Dissertation Abstract International |
| 790 | |
▼a 0130 |
| 791 | |
▼a Ph.D. |
| 792 | |
▼a 2018 |
| 793 | |
▼a English |
| 856 | 40 |
▼u http://www.riss.kr/pdu/ddodLink.do?id=T14999772
▼n KERIS
▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
| 980 | |
▼a 201812
▼f 2019 |
| 990 | |
▼a ***1012033 |