Molbank

22 KiB

Open AccessShort Note

Ethyl 2-(n-Butylamino)-7-hydroxy-5-methylpyrazolo[1,5-a]pyrimidine-3-carboxylate

by Lajos Kovács and Péter Forgó

Molecules 2000, 5(2), M143; https://doi.org/10.3390/M143 - 23 Feb 2000

Ethyl 2-cyano-3,3-bis(methylthio)acrylate 1 [1] (3.255 g; 15.0 mmol) was dissolved in anhydrous ethanol (100 mL), n-butylamine (1.100 g; 15.0 mmol) was added and the solution was heated to reflux for 2 h in a flask equipped with a gas outlet to remove the [...] Read more.

Ethyl 2-cyano-3,3-bis(methylthio)acrylate 1 [1] (3.255 g; 15.0 mmol) was dissolved in anhydrous ethanol (100 mL), n-butylamine (1.100 g; 15.0 mmol) was added and the solution was heated to reflux for 2 h in a flask equipped with a gas outlet to remove the evolving methanethiol (hood).[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

91 KiB

Open AccessShort Note

4-(5-Methyl-2-furfuryl)iden-2-furfurylaminobutanolide

by Lyudmila N. Sorotskaya, Tat'yana Ya. Kaklyugina and Larisa A. Badovskaya

Molecules 2000, 5(2), M142; https://doi.org/10.3390/M142 - 23 Feb 2000

Abstract

4-(5-Methyl-2-furfuryl)iden-2-furfurylaminobutanolide was prepared by the reaction of 4-(5-methyl- 2-furfuryl)iden-2-butenolide and furfurylamine according to a literature procedure [1].[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

89 KiB

Open AccessShort Note

3-Benzyl-4-(N-benzylcarbamoylmethyl)-2-(3-pyridyl)-1,3-oxazolidine

by Marina A. Tlekhusezh, Roman V. Makuilov and Larisa A. Badovskaya

Molecules 2000, 5(2), M141; https://doi.org/10.3390/M141 - 23 Feb 2000

Cited by 1

Abstract

The title compound was synthesized by the reaction of N-benzyl-3-benzylamino-4-hydroxybutanamide with 3-pyridinecarboxaldehyde using the procedure described in [1].[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

97 KiB

Open AccessShort Note

(4R)-1'-Acetyl-2,3-O-isopropylidene-methylspiro [4,6-dideoxy-ß-D-ribo-hexopyranosid-4,5'-imidazolidin]-2',4'-dione

by Bohumil Steiner, Jan Gajdos and Miroslav Koos

Molecules 2000, 5(2), M140; https://doi.org/10.3390/M140 - 23 Feb 2000

Cited by 1

Abstract

Acetylation of hydantoins (imidazolidin-2,4-diones) and their 5-substituted derivatives normally occurs more readily in the 1-position [1].[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

94 KiB

Open AccessShort Note

(4R,2'R,3'R,5'R)-3-[3,5-Bis(tert-butyldimethylsilyloxy)-1-oxo-2-(phenylmethoxy)hexyl]-4-(phenylmethyl)-2-oxazolidinone

by Margaret A. Brimble and Josephine S. O. Park

Molecules 2000, 5(2), M138; https://doi.org/10.3390/M138 - 23 Feb 2000

Abstract

To a solution of alcohol 1 (225 mg, 0.43 mmol) [1] in dry N,N-dimethylformamide (0.9 ml) at 0°C under an atmosphere of nitrogen was added imidazole (72 mg, 1.1 mmol) and tert-butyldimethylsilyl chloride (67 mg, 0.45 mmol). Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

92 KiB

Open AccessShort Note

(4R,2'R,3'R,5'R)-3-[5-(tert-Butyldimethylsilyloxy)-1-oxo-2,3-bis(phenylmethoxy)hexyl]-4-(phenylmethyl)-2-oxazolidinone

by Margaret A. Brimble and Josephine S. O. Park

Molecules 2000, 5(2), M137; https://doi.org/10.3390/M137 - 23 Feb 2000

Abstract

To a suspension of sodium hydride (5.9 mg, 60% in oil, 0.15 mmol) in tetrahydrofuran (0.34 ml) which contained a few drops of N,N-dimethylformamide, under nitrogen at 0°C, was added alcohol 1 (65 mg, 0.11 mmol) [1] in tetrahydrofuran (1.7 ml).[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

93 KiB

Open AccessShort Note

3-[5-(tert-Butyldimethylsilyloxy)-3-(3,5-dinitrobenzoyl)-1-oxo- 2-(phenylmethoxy)hexyl]-4-(phenylmethyl)-2-oxazolidinone

by Margaret A. Brimble and Josephine S. O. Park

Molecules 2000, 5(2), M136; https://doi.org/10.3390/M136 - 23 Feb 2000

Abstract

A mixture of alcohol 1 (104 mg, 0.20 mmol) [1], triethylamine (41 l, 0.30 mmol) and 3,5-dinitrobenzoyl chloride (55 mg, 0.24 mmol) in dichloromethane (2 ml) was stirred for 2 h. at 30ºC.[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

93 KiB

Open AccessShort Note

3-[5-(tert-Butyldimethylsilyloxy)-3-p-nitrobenzoyl-1-oxo- 2-(phenylmethoxy)hexyl]-4-(phenylmethyl)-2-oxazolidinone

by Margaret A. Brimble and Josephine S. O. Park

Molecules 2000, 5(2), M135; https://doi.org/10.3390/M135 - 23 Feb 2000

Abstract

A mixture of alcohol 1 (121 mg, 0.23 mmol) [1], triethylamine (48 l, 0.34 mmol) and p-nitrobenzoyl chloride (51 mg, 0.28 mmol) in dichloromethane (2 ml) was stirred for 2 h. at 30ºC.[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

93 KiB

Open AccessShort Note

(6bR*,9aR*)-6-(2-Benzyloxy-1-oxoethyl)-6b,9a-dihydro-5-hydroxy- 4-methoxyfuro[3,2-b]naphtho[2,1-d]furan-8(9H)-one

by Margaret A. Brimble and Josephine S. O. Park

Molecules 2000, 5(2), M134; https://doi.org/10.3390/M134 - 23 Feb 2000

Abstract

A solution of ceric ammonium nitrate (37 mg, 0.067 mmol) in water was added dropwise to a vigorously stirred solution of naphthol 1 (13 mg, 0.036 mmol) [1] in acetonitrile (2.2 ml) at room temperature and stirred for 15 min.[...] Full article

(This article belongs to the Section Molbank Section of Molecules, 1997-2001)

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Molbank, Volume 2000, Issue 2 (February 2000) – 9 articles

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