Specific example: nitration of trifluoromethylbenzene gives themetaproduct in about 90% yield. (Compare that to the case of anisole, above, where nitration resulted in a <5% yield of themetaproduct. ) 3. How Well Do “ortho-, para” And “meta“- Directors Correlate With “...
The dipole moments of ortho-, meta-, para-, and penta-fluorostyrene were determined in dilute benzene solution at 25 °C. It was found that the magnitude of the molecular dipole moment depends on the position of the fluorine atom in the benzene ring....
Synthesis of Benzene Derivatives: Converting ortho-,para- directors into meta- directors and vice versa. In planning the synthesis of simple benzene derivatives and other aromatic compounds, it’s vital to know some tricks for changing ortho-, para- directors into meta- directors, and vice versa...
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有机化合物常用缩写表【苯环,对位para- ,邻位ortho- ,间位meta.doc,有机化合物常用缩写表 有机化合物常用缩写表 ABO 2,7,8-Trioxabicyclo[3.2.1]octyl Ac Acetyl ACBZ 4-Azidobenzyloxycarbonyl ACE α-Chloroethoxycarbonyl AcHmb 2-Acetoxy-4-methoxybenzyl Acm Acetamido
第十三章 有机化合物常用缩写表【苯环,对位para- ,邻位ortho- ,间位meta-.doc,有机化合物常用缩写表 有机化合物常用缩写表 ABO 2,7,8-Trioxabicyclo[3.2.1]octyl Ac Acetyl ACBZ 4-Azidobenzyloxycarbonyl ACE α-Chloroethoxycarbonyl AcHmb 2-Acetoxy-4-methoxybenzyl Acm
pertaining to or occupying two adjacent positions in the benzene ring. Comparemeta,para2. [1875–80; independent use ofortho-] ortho- 1.a combining form meaning “straight,”“upright,”“right,”“correct”:orthodontics; orthopedic. 2. ...
有机化合物常⽤缩写表【苯环,对位para-,邻位ortho-,间位meta- 有机化合物常⽤缩写表 有机化合物常⽤缩写表 ABO 2,7,8-Trioxabicyclo[3.2.1]octyl Ac Acetyl ACBZ 4-Azidobenzyloxycarbonyl ACE α-Chloroethoxycarbonyl AcHmb 2-Acetoxy-4-methoxybenzyl Acm Acetamidomethyl Ad 1-Adamantyl Adoc 1-...
有机化合物常用缩写表有机化合物常用缩写表【苯环,对位para-,邻位ortho-,间位meta-有机化合物常用缩写表有机化合物常用缩写表ABO2,7,8-Trioxabicyclo[3.2.1]octylAcAcetylACBZ4-AzidobenzyloxycarbonylACEα-ChloroethoxycarbonylAcHmb2-Acetoxy-4-methoxybenzylAcmAcetamidomethylAd1-AdamantylAdoc1-Adamantyloxycarbonyl...