✦ LIBER ✦

Asymmetric synthesis of sceletium alkaloids: (−)-mesembrine, (+)-sceletium A-4, (+)-tortuosamine and (+)-N-formyltortuosamine

✍ Scribed by Osamu Yamada; Kunio Ogasawara

Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 227 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01689-x

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Asymmetric Synthesi

ChemInform Abstract: Asymmetric Synthesis of Sceletium Alkaloids: (-)-Mesembrine, (+)-Sceletium A-4, (+)-Tortuosamine and (+)-N-Formyltortuosamine.

✍ O. YAMADA; K. OGASAWARA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

Further applications of endocyclic enami

Further applications of endocyclic enamine-enone annulations : The total syntheses of rac-Sceletium alkaloid A4 and 3'-demethoxy sceletium alkaloid A4

✍ C.P. Forbes; G.L. Wenteler; A. Wiechers 📂 Article 📅 1978 🏛 Elsevier Science 🌐 French ⚖ 318 KB

ChemInform Abstract: First Enantiocontro

ChemInform Abstract: First Enantiocontrolled Synthesis of Sceletium Alkaloid A-4: Determination of the Absolute Configuration.

✍ T. KAMIKUBO; K. OGASAWARA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 2 views

A novel synthesis of 4-alkyl-4-(4-methox

A novel synthesis of 4-alkyl-4-(4-methoxyphenyl)cyclohex-2-en-1-ones and the Sceletium alkaloid, o-methyljoubertiamine.

✍ Louis D. Schulte; Reuben D. Rieke 📂 Article 📅 1988 🏛 Elsevier Science 🌐 French ⚖ 268 KB

The dianion formed by reduction of (q6:q6-4,4'-dimethoxybiphenyl)-[Cr(C0)3]2 reacts with electrophiles such as methyl or ethyl triflate or ally1 tosylate at -78 oC followed by CF3CO2H and 12 to form 4-alkyl-4-(4-methoxyphenyl)cyclohex-2en-1 -ones.

ChemInform Abstract: Asymmetric Construc

ChemInform Abstract: Asymmetric Construction of a Quaternary Carbon Center by Tandem (4 + 2) /(3 + 2) Cycloaddition of a Nitroalkene. The Total Synthesis of (-)- Mesembrine.

✍ S. E. DENMARK; L. R. MARCIN 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views

ChemInform Abstract: Asymmetric Synthesi

ChemInform Abstract: Asymmetric Synthesis of Alkaloid (-)-(2S,4S) SS 20846 A and Its C-4 Epimer.

✍ I. RIPOCHE; J.-L. CANET; B. ABOAB; J. GELAS; Y. TROIN 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 36 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v