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Synthesis of 11-bromo-9-methyl-6-methylene-3-methylthio-5,6,9,10-tetrahydro-8H-[1,2,4]triazolo[3′,4′;3,4]pyrazino[1,2-c]pyrimidine-8,10-dione from 4-allyl-1-(3-methyl-2,4-dioxo-1,2,3,4-tetrahydro-6-pyrimidinylcarbonyl)thiosemicarbazide

✍ Scribed by G. Myakushkene; P. Vainilavichyus

Publisher: Springer US
Year: 1999
Tongue: English
Weight: 259 KB
Volume: 35
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf02251663

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ChemInform Abstract: Synthesis of 11-Bro

ChemInform Abstract: Synthesis of 11-Bromo-9-methyl-6-methylene-3-methylthio-5,6,9,10-tetrahydro-8H- [1,2,4]triazolo[3′,4′:3,4]pyrazino[1,2-c]pyrimidine-8,10-dione from 4-Allyl-1- (3-methyl-2,4-dioxo-1,2,3,4-tetrahydro-6-pyrimidinylcarbonyl) thiosemicarbazide.

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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

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The title compound, C 23 H 25 BrO 3 , was synthesized by the reaction of p-bromobenzaldehyde with dimedone and HClO 4 / SiO 2 in EtOH. In the molecule, the dihydropyran ring adopts a boat conformation and the two cyclohexene rings are in a trans conformation.

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The crystal structure of the title compound, C 24 H 27 NO 4 , reveals that there are two roughly identical molecules in the asymmetric unit. In both acridine moieties, the central pyridine rings are slightly distorted and adopt a boat conformation, whereas the two outer six-membered rings display ha

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Single-crystal X-ray study T = 295 K Mean '(C±C) = 0.003 A Ê R factor = 0.042 wR factor = 0.108 Data-to-parameter ratio = 14.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.