Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Azete 3,4-dihydro

Aus In-aminen erhalt man beim Erhitzcn mit (ii)-l-Nitro-l-alkenen tiber [2+ 2]-Cycloaddition trans-i-Amino-4-nitro-cyclobutene und 4-Aminocarbonyl-3,4-dihydro-azet-1 -oxide2 ... [Pg.254]

Intramolecular nucleophilic cyclization is used for the synthesis of four-membered heterocycles. This is a general route for reactions of many perfluoroolefins with primary amines. Thus the interaction between perfhioro-3,4-dimethylhex-3-ene and butylamine in the presence of triethylamine forms N-butyl-perfhioro-2,3,4-trimethyl-2-ethyl-l, 2-dihydro-azete (87ASCC31). In the absence of triethylamine, a mixture of products is obtained, among which are the derivatives of azetidine 15 and azete 16. [Pg.151]

Azet 3,3-Dichlor-2,4-dimethyl-3,4-dihydro- E16c, 927 (aus N3 — cyclopropan)... [Pg.206]

Methyl-2-oxo- XI/2, 569 5-Methyl-2-oxo- VIII, 670 3H-Azepin 2-Methoxy-4,5,6,7-tetrahydro- XI/2, 578 Azet 3,3(bzw. 3,4)-Dimethyl-2-ethoxy-3,4-dihydro- E16c, 929 (En —OR-Bildung)... [Pg.411]

Azet 3,3-Dimethyl-2-dimethylami-no-3,4-dihydro- Elbe, 923 [Imin + R —C(C1)=NR) Bicyclo[2.2.1]heptan... [Pg.417]

Azet 2-Dimethylamino-4-methoxy-carbonyl-3-methy -3,4 dihydro-E16c, 923... [Pg.526]

Azet 3,3-Dichlor-2-phenyl-3,4-dihydro- -1-oxid El4b. 1418 (aus Imin)... [Pg.579]

Aminoxid (2-Cyclooctenyl)-dimethyl- V/Ic, 182 Azet 4-tert.-Butyl-2-ethoxy-4-methyl-3,4-dihydro- E16c, 929 (Enol-ether-Bildg.)... [Pg.815]

Azet 2-Dimethylamino-3-methyl-4-phenyl-3,4-dihydro- E16c, 923 (Imin + R—C(C1) = N —R] Benzo-i,6-diaza-bicyclo 4,4.0 dec-3-en... [Pg.1032]

Azet 2,3-Dihydro-2,2,3,3-tetra-methyl-4-phenyl- E21c, 3154 (Ar —CN -I- En)... [Pg.1159]

Azet 2-Ethoxy-3-ethyl-3-phenyl-3,4-dihydro- E16c. 928 (Enol — ether-Bild.)... [Pg.1160]

The stability and reactivity of the compounds are determined by the ring strain and the nature of the heteroatom or heteroatoms. While azete, as an antiaromatic system, is extremely reactive, the aromatic systems 1,2-dithiete and 1,2-dihydro-1,2-diazete are hardly any more stable and are very reactive. [Pg.50]

See other pages where Azete 3,4-dihydro is mentioned: [Pg.119]    [Pg.705]    [Pg.9]    [Pg.9]    [Pg.381]    [Pg.745]    [Pg.705]    [Pg.359]    [Pg.381]    [Pg.119]    [Pg.395]    [Pg.939]    [Pg.705]    [Pg.705]    [Pg.57]    [Pg.32]    [Pg.32]    [Pg.57]   
See also in sourсe #XX -- [ Pg.534 ]



SEARCH



© 2024 chempedia.info