FR2258380A1 - Tetramisoles prepn - by treating imidazolidine-2-thiones with ethylene oxide, halogenating the product and treating it with a base
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Tetramisoles prepn - by treating imidazolidine-2-thiones with ethylene oxide, halogenating the product and treating it with a base
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Publication of FR2258380B3publicationCriticalpatent/FR2258380B3/fr
C07D513/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
C07D513/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
C07D513/04—Ortho-condensed systems
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FR7401945A1974-01-211974-01-21Tetramisoles prepn - by treating imidazolidine-2-thiones with ethylene oxide, halogenating the product and treating it with a base
GrantedFR2258380A1
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Werkwijze voor de bereiding van thermoplastische siliciumorganische elastomeren, alsmede gevormd voortbrengsel, dat geheel of ten dele daaruit bestaat.
Veldeffecttransistor voor hoge frequenties omvattende een halfgeleiderlichaam met een stuurgebied, dat door een gelijkrichtende overgang van het halfgeleiderlichaam is gescheiden.