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Showing papers by "Patoomratana Tuchinda published in 2000"

Journal Article•DOI•
An azaanthracene alkaloid from Polyalthia suberosa.

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Patoomratana Tuchinda1, Manat Pohmakotr1, Bamroong Munyoo1, Vichai Reutrakul1, Thawatchai Santisuk •
Mahidol University1
01 Apr 2000-Phytochemistry
TL;DR: An azaanthracene alkaloid, 1-aza-9,10-dimethoxy-4-methyl-2-oxo-1,2-dihydroanthracenes (kalasinamide) has been isolated from the stems of Polyalthia suberosa and the known N-trans-feruloyltyramine and N- trans-coumaroylTYramine are also reported from the same source.

38 citations

Journal Article•DOI•
A general strategy to spiro[4.n]alk-2-ene-1,6-diones and spiro[5.n]alk-2-ene-1,7-diones via intramolecular acylation of α-sulfinyl carbanions

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Manat Pohmakotr1, Tanasri Bunlaksananusorn1, Patoomratana Tuchinda1•
Mahidol University1
15 Jan 2000-Tetrahedron Letters
TL;DR: In this article, a convenient and general synthetic method for spiro[4.n]alk-2-ene-1,6-diones, which involves the intramolecular acylation of an α-sulfinyl carbanion, is described.

12 citations

Journal Article•DOI•
9,10-Di­methoxy-4-methyl-1,2-di­hydro-1-aza­anthracen-2-one (kalasin­amide), a new aza­anthracene alkaloid

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Pongchan Thinapong1, Orapin Rangsiman1, Patoomratana Tuchinda1, Bamroong Munyoo1, Manat Pohmakotr1, Vichai Reutrakul1 •
Mahidol University1
01 Jul 2000-Acta Crystallographica Section C-crystal Structure Communications
TL;DR: Aza-anthracene alkaloid, namely 9,10-methoxy-4-methyl-1,2-di-hydro-1-azaanthracen-2-one (kalasinamide), C16H15NO3, has been isolated from the stems of Polyal-thia suberosa collected in the northeastern part of Thailand as discussed by the authors.
Abstract: A new aza­anthracene alkaloid, namely 9,10-di­methoxy-4-methyl-1,2-di­hydro-1-aza­anthracen-2-one (kalasin­amide), C16H15NO3, has been isolated from the stems of Polyal­thia suberosa collected in the northeastern part of Thailand. Each of the aromatic rings in the mol­ecule is planar within \pm0.021 (2) A. Molecules are linked to form centrosymmetric dimers by N—H⋯O hydrogen bonds [N⋯O 2.941 (4) A].

4 citations

Journal Article•DOI•
A General Strategy to Spiro[4.n]alk-2-ene-1,6-diones and Spiro[5.n]alk-2-ene-1,7-diones via Intramolecular Acylation of α-Sulfinyl Carbanions.

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Manat Pohmakotr1, Tanasri Bunlaksananusorn1, Patoomratana Tuchinda1•
Mahidol University1
23 May 2000-ChemInform
TL;DR: In this paper, a convenient and general synthetic method for spiro[4.n]alk-2-ene-1,6-diones, which involves the intramolecular acylation of an α-sulfinyl carbanion, is described.
Abstract: A convenient and general synthetic method for spiro[4.n]alk-2-ene-1,6-diones and spiro[5.n]alk-2-ene-1,7-diones, which involves the intramolecular acylation of an α-sulfinyl carbanion, is described.

1 citations