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The following other wikis use this file: Usage on ar.wikipedia.org فوران (مركب كيميائي) Usage on az.wikipedia.org Furan; Usage on bg.wikipedia.org
The reaction product is a mixture of isomers with preference for the endo isomer: Diels-Alder reaction of furan with arynes provides corresponding derivatives of dihydronaphthalenes, which are useful intermediates in synthesis of other polycyclic aromatic compounds. [16]
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The following other wikis use this file: Usage on ar.wikipedia.org حلقة عطرية بسيطة; Usage on az.wikipedia.org Oksigenli üzvi birləşmələr
The following two changes in font may be performed by going to File → Document Style) Font: Arial; Font scale: 18; Carbon labels: Never (which may be done by going to Edit → Preferences → Structure) View → Colors: Monochrome; The following three may be performed by going to Edit → Preferences → Display: Double bond spacing: 0.18
The 2,3-dihydrofuran ring can be synthesized by several methods. These routes usually involve cyclization or cycloaddition reactions of carbonyl compounds using metal-containing catalysts. [5] [6] Iodine can also serve as a catalyst [7] as well as Raney nickel. [8]
2,5-Dimethylfuran serves as a scavenger for singlet oxygen, a property which has been exploited for the determination of singlet oxygen in natural waters.The mechanism involves a Diels-Alder reaction followed by hydrolysis, ultimately leading to diacetylethylene and hydrogen peroxide as products.
A Haworth projection has the following characteristics: [3] Carbon is the implicit type of atom. In the example on the right, the atoms numbered from 1 to 6 are all carbon atoms. Carbon 1 is known as the anomeric carbon. Hydrogen atoms on carbon are implicit. In the example, atoms 1 to 6 have extra hydrogen atoms not depicted.