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Novel skeletal bromo ether from the marine alga, Laurencia nipponica yamada

✍ Scribed by Teruaki Suzuki; Akio Furusaki; Nobuhiro Hashiba; Etsuro Kurosawa

Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
225 KB
Volume
18
Category
Article
ISSN
0040-4039

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✦ Synopsis

Red alga, Laurencia nipponica Yamada, is unique in the various biosynthesis of halogenated Cl5 non-terpenoids having the conjugated enyne (2) related to laurediol (3), chamigrene derivatives (4), cuparene derivatives (5) and methylrearranged sesquiterpenoids (6). In our continuing study of the neutral essential oil from this alga, we have isolated novel skeletal bromo ether (I) (acetal),

πŸ“œ SIMILAR VOLUMES

Laurallene, new bromoallene from the mar
Laurallene, new bromoallene from the marine red alga Laurencia nipponica Yamada
✍ Akio Fukuzawa; Etsuro Kurosawa πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 French βš– 225 KB

Laurallene (L), a new brominated cyclic ether having a terminal allene moiety, has been isolated as a main constituent from the marine red alga Laurencia nipponica Yamada (Rhodomelaceae, Rhodophyta) and its structure was determined by its physical and chemical properties.

The absolute configuration of cycloeudes
The absolute configuration of cycloeudesmol from the red alga Laurencia nipponica Yamada
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The absolute configuration of cycloeudesmol, isolated from the red alga Lauren&a nipponica Yamada and Chondria oppositiclada Dawson, is determined by the crystallographic study. In our previous report'), the structure of isocycloeudesmol, C15HZ60, isolated from L. nipponica Yamada, has been proposed

Structure of spironippol, a new sesquite
Structure of spironippol, a new sesquiterpene, from the red alga laurencia nipponica yamada
✍ Akio Fukuzawa; Chie Ming Shea; Tadashi Masamune; Akio Furusaki; Chuji Katayama; πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 French βš– 141 KB

A new sesquiterpene, designated as spironippol, was isolated from the title alga. The structure, which was determined on the basis of the spectral data and X-ray crystallography,