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Your search keyword '"Chlorine -- Analysis"' showing total 2 results
Start Over Descriptor "Chlorine -- Analysis" Journal journal of organic chemistry
2 results on '"Chlorine -- Analysis"'

1. N-heterocyclization in electrophilic haloamidation reactions of 1, 5-cyclooctadiene: synthesis and rearrangements of the granatanine and homonortropane skeletons

Author

Haufe, Gunter, Rolle, Ulrike, Kleinpeter, Erich, Kivikoski, Jussi, and Rissanen, Kari

Subjects
Heterocyclic compounds -- Research, Ring formation (Chemistry) -- Observations, Chlorine -- Analysis, Biological sciences, Chemistry
Abstract

9-azabicyclononanes 2 and 3 can be prepared by transannular N-heterocyclization of 1,5-cyclooctadiene which employs B-bromo- or N-iodosuccinimide and cyanamide. This method is unsuccessful when N-chlorosuccinimide was used. Dehydration of the carboxamide after nucleophilic displacement with chlorine affected the preparation of chloro-substituted derivative.

Published
1993

2. Total synthesis of (plus or minus)-(1beta, 6alpha, 9beta, 10alpha)-9-chloro-10hydroxy-8-(methoxycarbonyl)-4-methylene-2, 5-dioxabicyclo-(4.4.0)dec-7-en-3-one, the first chloride-containing chorismate metabolite from fungi

Author

Cheng Tu and Berchtold, Glenn A.

Subjects
X-ray crystallography -- Usage, Chlorine -- Analysis, Cyclic compounds -- Research, Biological sciences, Chemistry
Abstract

Investigations of the metabolite (pm)-(1beta,6alpha,9beta, 10alpha)-9-chloro-10-hydroxy-8-(methoxycarbonyl)-4- methylene-2, 5-dioxabicyclo-(4.4.0)dec-7-en-3-one (1), accomplished the total synthesis of racemic 1 by the lactonization of diester 3, which was obtained from dimethyl chorismate. 1 is a chlorine-containing metabolite that was isolated from various fungi.

Published
1993

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