✦ LIBER ✦

4a,6-Bis-(N-methlanilino)-7-hydroxy-2,3,8-trimethyl-4a,9a-dihydro-xanthen-1,4-dion: Ein thermolyseprodukt von 6-(N-methylanilino)-7a-methyl-3a,7a-dihydroindazol-4,7-dion

✍ Scribed by Manfred Schubert-Zsilavecz

Publisher: Springer Vienna
Year: 1991
Tongue: English
Weight: 209 KB
Volume: 122
Category: Article
ISSN: 0026-9247
DOI: 10.1007/bf00809808

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

4-Hydroxy-3,4a,8-trimethyl-3,3a,4,4a,7a,

4-Hydroxy-3,4a,8-trimethyl-3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione

✍ Pu, Shou-Cheng ;Tu, Chun-Ling ;Deng, Yi 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 400 KB

The title compound, C 15 H 20 O 4 , also known as dihydrohelenalin, is a drug obtained from a Chinese plant. It contains a seven-membered ring in a chair conformation and two fivemembered rings in twist conformations. The crystal packing involves O-HÁ Á ÁO hydrogen bonds. ## Related literature Fo

9,9′-Thiobis-(1,2,3,4,7,8-hexahydro-7-me

9,9′-Thiobis-(1,2,3,4,7,8-hexahydro-7-methyl-6H-pyrimido[1,6-a]pyrimidine-6,8-dione)

✍ Ondrej Šimo; Alfonz Rybár; Juraj Alföldi; Vladimír Pätoprstý 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 292 KB

## Abstract The 6‐(3‐hydroxypropylamino)‐3‐methylpyrimidine‐2,4‐dione (1) did not afford the expected 6‐(3‐chloro‐propylamino)‐ derivative on reaction with thionyl chloride, but, instead, the pyrimidine rings were joined __via__ a sulfur bridge to give 9,9′‐thiobis(1,2,3,4,7,8‐hexahydro‐7‐melnyl‐6_

4a-Hydroxy-9-(3-nitrophenyl)-3,4,4a,5,

4a-Hydroxy-9-(3-nitrophenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione

✍ Hua, Guoping ;Xu, Jianing ;Jiang, Bo ;Zhang, Yan ;Tu, Shujiang 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 156 KB

ChemInform Abstract: 9,9′-Thiobis-(1,2,3

ChemInform Abstract: 9,9′-Thiobis-(1,2,3,4,7,8-hexahydro-7-methyl-6H-pyrimido [1,6-a]pyrimidine-6,8-dione).

✍ Ondrej Simo; Alfonz Rybar; Juraj Alfoeldi; Vladimir Paetoprsty 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

Über das 7-Methyl-4,5-diphenyl-4,4a,5,6,

Über das 7-Methyl-4,5-diphenyl-4,4a,5,6,7,8,10,10a-octahydro-7,10a-methano-pyrimido[4,5—d][1,3]-diazocin-2,9(1H,3H)-dion

✍ W. Wendelin; A. Fuchsgruber 📂 Article 📅 1974 🏛 Springer Vienna 🌐 English ⚖ 397 KB

1-Ethyl-4,4,6,8-tetramethyl-2-tosyl-2,3,

1-Ethyl-4,4,6,8-tetramethyl-2-tosyl-2,3,3a,4,6,7,8,9-octahydro-1H-pyrrolo[3,4-c]pyrano[6,5-d]pyrimidine-7,9-dione

✍ Chinnakali, K. ;Sudha, D. ;Jayagopi, M. ;Raghunathan, R. ;Fun, Hoong-Kun 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 913 KB

The asymmetric unit of the title compound, C~22~H~29~N~3~O~5~S, contains two independent molecules, __A__ and __B__, which differ slightly in the orientation of the ethyl and tosyl groups with respect to the attached pyrrolidine ring, as evidenced by the relevant torsion angles. In both molecules, t