Zobrazeno 1 - 10
of 47
pro vyhledávání: '"WD Crow"'
Publikováno v:
Chemischer Informationsdienst. 8
Low-pressure gas-phase pyrolysis of aryl aldehyde azines leads to formation of the corresponding aryl cyanides in varying yield, together with small amounts of the corresponding stilbenes. In the case of benzaldehyde azine, stilbene formation is show
Publikováno v:
Australian Journal of Chemistry. 37:1915
A series of benzo-fused cyclic carbenes, bearing suitably located alkoxy substituents in the phenyl ring, has been generated in the gas phase and pyrolysed at 250�/0.002-0.40 mm. In all cases, carbene insertion into the adjacent C-H bond (Bamford-S
Publikováno v:
Australian Journal of Chemistry. 32:123
A series of 1-phenylethylidenes, substituted in the ortho-position by alkoxy, dialkylamino and alkylthio side chains containing up to three carbon atoms, has been generated in the gas phase and pyrolysed at 250-750�/0.05-0.30 mm. Carbene insertion
Publikováno v:
Australian Journal of Chemistry. 35:1411
A new synthetic approach is described to the plant growth regulators of the hexahydrobenzo[e]- 1,2-dioxin group (the G-regulators of Eucalyptus grandis). Condensation of 1,3-diketones with aldehydes under Lewis acid catalysis gives, in good yield, th
Publikováno v:
Australian Journal of Chemistry. 37:1903
Low-pressure thermal generation of a range of o-alkylthiophenylcarbenes produces, in addition to the normal insertion products, styrenes and 1,3-dihydrobenzo[c]thiophens-clearly arising from rearrangement. The main features of their mechanism of form
Publikováno v:
Australian Journal of Chemistry. 29:2281
Low-pressure gas-phase pyrolysis of aryl aldehyde azines leads to formation of the corresponding aryl cyanides in varying yield, together with small amounts of the corresponding stilbenes. In the case of benzaldehyde azine, stilbene formation is show
Publikováno v:
Australian Journal of Chemistry. 34:1037
The 2-(XC6H4)-substituted phenylcarbenes in which X = CH2, NH, O and S have been generated and pyrolysed in the gas phase at low pressure. When X = CH2 or NH, the main reaction is simple insertion into the adjacent o-position of the XC6H5 ring to giv
Publikováno v:
Australian Journal of Chemistry. 32:111
o-Alkoxy- and o-alkylthio-phenylcarbenes, generated by low-pressure pyrolysis in the gas phase, show abstraction of 2H across space to generate the corresponding o-tolyl vinyl ethers or sulfides. In the case of o-ethoxyphenylcarbene, deuterium labell
Publikováno v:
Australian Journal of Chemistry. 29:2289
Gas-phase pyrolysis of cyclopentanone and cyclohexanone azines results in the formation of iminyl radicals. These undergo ring cleavage to the ω-cyanoalkyl radicals, which stabilize, by internal hydrogen-atom transfer, to the corresponding α-cyanoa
Publikováno v:
Australian Journal of Chemistry. 22:2497