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Jasem YA, El-Esawi R, Thiemann T. Wittig- and Horner–Wadsworth–Emmons-Olefination Reactions with Stabilised and Semi-Stabilised Phosphoranes and Phosphonates under Non-Classical Conditions. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14044684705710] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Yosef Al Jasem
- Department of Chemical Engineering, Faculty of Engineering, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Randa El-Esawi
- Department of Chemistry, Faculty of Science, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Thies Thiemann
- Department of Chemistry, Faculty of Science, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
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Kumar R, Richa, Andhare NH, Shard A, Sinha AK. Water Compatible Multicomponent Cascade Suzuki/Heck-Aldol, Suzuki-Aldol-Suzuki, and Aldol-Suzuki-Aldol Reactions: An Ecofriendly Paradigm for Multiple CarbonCarbon Bond Formation in One Pot. Chemistry 2013; 19:14798-803. [DOI: 10.1002/chem.201303069] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Indexed: 12/20/2022]
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Yasuda T, Shima Y, Ideta K, das Neves Oliveira C, Thiemann T. 7α-Alkoxyestra-1,3,5(10)-Trienes. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x287140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
α-Alkoxyestradiols were prepared through LiAlH4 reduction of a suitably protected 6α,7α-epoxyestra-1,3,5(10)-trien-3-ol-17-one, alkylation of the resultant 7α-hydroxyestra-1,3,5(10)-trien-3-ol-17-one derivative and subsequent transformation of the C17 functionality.
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Affiliation(s)
- Takumi Yasuda
- Interdisciplinary Graduate School of Engineering Sciences and
| | - Yuji Shima
- Interdisciplinary Graduate School of Engineering Sciences and
| | - Keiko Ideta
- Institute of Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koh-en, Kasuga-shi, Fukuoka 816-8580, Japan
| | | | - Thies Thiemann
- Interdisciplinary Graduate School of Engineering Sciences and
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Abstract
Abstract17-Thienyl-and 17-benzo[b]thienyl-3-hydroxyestra-1,3,5(10),16-tetraenes were synthesized by either sequential or one-pot Suzuki cross-coupling and Wittig olefination reactions. At 160 °C, heteroaryl substituted steroids were observed to undergo thermal intramolecular cyclization to produce E-ring heteroareno-annelated estranes.
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