Strychnos 1990 - 2004 - Crops for the Future
Strychnos 1990 - 2004 - Crops for the Future
Strychnos 1990 - 2004 - Crops for the Future
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Author<br />
Title<br />
Year<br />
Source title<br />
Reference<br />
Ishibashi, H. and M. Ikeda<br />
Recent progress in electrophilic aromatic substitution with alpha-thiocarbocations<br />
1996<br />
Reviews on Heteroatom Chemistry<br />
14: 59-82<br />
Abstract<br />
This review summarizes <strong>the</strong> recent work on electrophilic aromatic substitution with alphathiocarbocations.<br />
Emphasis has been made on <strong>the</strong> structural modification and variation of <strong>the</strong><br />
reaction conditions of alpha-chlorosulfides or sulfoxides to accomplish <strong>the</strong> reactions. The literature<br />
from 1991 to January 1996 are covered in this review.<br />
Author<br />
Title<br />
Year<br />
Source title<br />
Reference<br />
Kuehne, M. E., T. S. Wang and D. Seraphin<br />
Syn<strong>the</strong>ses of strychnos and aspidospermatan-type alkaloids .8. Selective total synt<br />
1996<br />
Journal of Organic Chemistry<br />
61(22): 7873-7881<br />
Abstract<br />
Mossambine (6) was obtained by a six-step reaction sequence from <strong>the</strong> indoloazepine ester 7.<br />
Radical cyclization of <strong>the</strong> tetracyclic vinyl iodide 12a provided a racemic pentacyclic ketone 16E,<br />
which could be converted to ei<strong>the</strong>r enantiomer by condensation with (S or R)-N,S-dimethyl-Sphenylsulfoximine<br />
and selective pyrolysis of <strong>the</strong> resulting diastereomeric alcohols 18 and 19 or 20<br />
and 21. Selective reductions of <strong>the</strong> resolved (or racemic) ketone 16E provided mossambine (6) and<br />
i t s h y d r o x y e p i m e r 1 7 .<br />
Author<br />
Title<br />
Year<br />
Source title<br />
Reference<br />
Abstract<br />
Martin, S. F., C. W. Clark, M. Ito and M. Mortimore<br />
A biomimetic approach to <strong>the</strong> <strong>Strychnos</strong> alkaloids. A novel, concise syn<strong>the</strong>sis of (<br />
1996<br />
Journal of <strong>the</strong> American Chemical Society<br />
118(40): 9804-9805<br />
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