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Molecules, Volume 7, Issue 9 (September 2002) – 5 articles , Pages 690-720

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Open AccessArticle
Regioselective Protection of the 4-Hydroxyl of 3,4-Dihydroxy-benzaldehyde
Molecules 2002, 7(9), 697-705; https://doi.org/10.3390/70900697 - 30 Sep 2003
Cited by 19 | Viewed by 7206
Abstract
The regioselective protection of the 4-hydroxyl group of 3,4-dihydroxy-benzaldehyde was accomplished with seven different protecting groups (benzyl, p-methoxybenzyl, o-nitrobenzyl, 2,6-dichlorobenzyl, 3,4-dichlorobenzyl, vinyl and propargyl) in yields ranging between 67-75%. Full article
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Open AccessCorrection
Publication Note Concerning Molecules 2002, 7, 717-720
Molecules 2002, 7(9), 717-720; https://doi.org/10.3390/70900717 - 30 Sep 2002
Viewed by 3047 | Correction
Open AccessArticle
Chemical Composition of the Essential Oil of Psidium caudatum McVaugh
Molecules 2002, 7(9), 712-716; https://doi.org/10.3390/70900712 - 30 Sep 2002
Cited by 12 | Viewed by 5479
Abstract
The chemical composition of the essential oil of Psidium caudatum McVaugh was investigated and thirty-two compounds were identified by HRGC-MS. The main constituents were terpinen-4-ol (47.72%), γ-terpinene (11.58%) and α-terpinene (6.70%). Full article
Open AccessArticle
Diazoamino Coupling of a 4-Sulfobenzenediazonium Salt with Some Cyclic Amines
Molecules 2002, 7(9), 706-711; https://doi.org/10.3390/70900706 - 30 Sep 2002
Cited by 9 | Viewed by 5178
Abstract
Preparation of several novel potassium salts of 4-substituted aminoazo-benzenesulfonic acids by the simple and convenient reaction of insoluble 4-sulfo-benzenediazonium chloride with some (hetero)cyclic amines of various ring sizes is reported. The compounds obtained have shown potential antiinflammatory activity in biological testing. Full article
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Open AccessArticle
Crystal Structure of N,N-bis-(3-Carbomethoxy-5-methyl-pyrazol-1-ylmethyl)aniline
Molecules 2002, 7(9), 690-696; https://doi.org/10.3390/70900690 - 30 Sep 2002
Cited by 4 | Viewed by 6974
Abstract
The tripodal ligand N,N-bis-(3-carbomethoxy-5-methylpyrazol-1-yl)methyl aniline (2) has been prepared by the condensation of aniline with two equivalents of N-hydroxymethyl[3-carbomethoxy-5-methyl]pyrazole. The molecule consists of two structurally analogous 3-carbomethoxy-5-methylpyrazol-1-ylmethyl moieties, which adopt a transoidal conformation via a central aniline ring, suggesting that this tripodal ligand [...] Read more.
The tripodal ligand N,N-bis-(3-carbomethoxy-5-methylpyrazol-1-yl)methyl aniline (2) has been prepared by the condensation of aniline with two equivalents of N-hydroxymethyl[3-carbomethoxy-5-methyl]pyrazole. The molecule consists of two structurally analogous 3-carbomethoxy-5-methylpyrazol-1-ylmethyl moieties, which adopt a transoidal conformation via a central aniline ring, suggesting that this tripodal ligand is highly flexible and could accommodate many metals by coordination. Full article
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