✦ LIBER ✦

Synthesis of Aristotelia-type alkaloids. Part XI. Total syntheses of (+)-sorelline and (+)-aristolasene

✍ Scribed by Markus Dobler; René Beerli; Walter K. Weissmahr; Hans-Jürg Borschberg

Book ID: 108036176
Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 737 KB
Volume: 3
Category: Article
ISSN: 0957-4166
DOI: 10.1016/0957-4166(92)80018-r

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of Aristotelia-type alkaloids.

Synthesis of Aristotelia-type alkaloids. Part VII. Syntheses of (±)-sorelline, (±)-serratenone, and (±)-aristotelin-19-one

✍ Stefan Burkard; Hans-Jürg Borschberg 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 German ⚖ 941 KB

1 3. XII. 90

Synthesis of Aristotelia-Type Alkaloids.

Synthesis of Aristotelia-Type Alkaloids. Part XV. Total synthesis of (+)-hobartinol

✍ Markus Dobler; James C. Anderson; Mathias Juch; Hans-Jürg Borschberg 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 German ⚖ 565 KB

Synthetic (+)-makomakine (6) was transformed in six steps into (+)-( 17 R,18R)-17,18-dihydrohobartine-17,18-diol((+)-5) with an overall yield of 38 % (Scheme 2). This compound was shown to be identical with natural hobartinol, a monoterpene indole alkaloid from Aristoteliu uustrulusicu, originally b

Synthesis of Aristotelia-Type Alkaloids.

Synthesis of Aristotelia-Type Alkaloids. Part XIII. Total syntheses of (+)-makonine, (+)-aristotelinone, and (+)-11,12-didehydroaristoteline

✍ Reto Stahl; Renato Galli; Rolf Güller; Hans-Jürg Borschberg 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 German ⚖ 509 KB

Synthesis of Aristotelia-Type Alkaloids.

Synthesis of Aristotelia-Type Alkaloids.. Part IV. Synthesis of (±)-aristoserratine

✍ Stefan Burkard; Hans-Jürg Borschberg 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 German ⚖ 661 KB

Part 111: [I]. ') Hobartine (4) has been synthesized by others in racemic [3] [4] and optically activc form [5] Sc hemr 4 CHO dC? dC> OK$ p-M BS p-M BS H 15 18 17 R=CH, Reagents: a) 1. 2 equiv. BuLi, 2. p-methoxybenzenesulfonyl chloride; b) CH,N2; c) DIBAH, -70". ' ) 7,

Synthesis of Aristotelia-type alkaloids.

Synthesis of Aristotelia-type alkaloids. Part IX. Synthesis of (±)-alloaristoteline

✍ Rolf Güller; Hans-Jürg Borschberg 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 German ⚖ 613 KB

## Abstract The probably most straightforward plan to synthesize the indole alkaloid alloaristoteline (5) failed, because– in marked contrast to the regular __Aristotelia__ series‐electrophilic reagents attack with preference C(3) of the indole moiety in the key intermediate allohobartine ((−)‐12),

Synthesis of Aristotelia-Type Alkaloids.

Synthesis of Aristotelia-Type Alkaloids. Part VIBiomimetic Synthesis of (+)-Aristofruticosine

✍ René Beerli; Hans-Jürg Borschberg 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 German ⚖ 469 KB

8. XI. 90) (S)-Perilla alcohol (5) was transformed into (S)-7-(phenylthio)-p-menth-l-en-8-amine (11) in five steps. Condensation of this building block with 1 -(4-methoxyphenyIsulfonyl)-l H-indole-3-acetaldehyde (12) led to the expected imine 15 which cyclized in 54% yield to protected 20-(pheny1thi