منابع مشابه
3-Methoxy-4-(4-nitrobenzyloxy)benzaldehyde
In the title compound, C(15)H(13)NO(5), the vanillin group makes a dihedral angle of 4.95 (8)° with the benzene ring of the nitro-benzene group. The packing is stabilized by weak, non-classical inter-molecular C-H⋯O inter-actions which link mol-ecules into chains running along the c axis.
متن کاملEvaluation of plasma 3-methoxy-4-hydroxyphenylglycol.
A high-performance liquid chromatographic (HPLC) assay suitable for the evaluation of 3-methoxy-4-hydroxyphenylglycol (MHPG) in 1-ml aliquots of plasma is presented. Preparatory steps include extraction into ethyl acetate and minicolumn chromatography. Recoveries are monitored with [3H]MHPG. The HPLC procedure utilizes a C18 column, isocratic elution and amperometric detection. The assay was ch...
متن کاملSYNTHESIS OF 8-HYDROXY-6-METHOXY- 3-UNDECYLISOCOUMARIN AND 2-HY DROXY - 4-METHOXY-6-(2-OXOTRIDECYL) BENZOIC ACID
Straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. Hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, Cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furni...
متن کامل4-[(E)-(3-Chloro-4-methylphenyl)iminomethyl]-2-methoxy-3-nitrophenyl acetate
The title compound, C(17)H(15)ClN(2)O(5), displays a trans-configuration with respect to the C=N double bond. The mol-ecule is twisted, the dihedral angle between the mean planes of the two benzene rings being 18.70 (12)°. The nitro, meth-oxy and acetyl groups are oriented at 80.70 (11), 35.2 (2) and 72.35 (10)°, respectively, to the benzene ring to which they are bonded. The crystal structure ...
متن کامل3-methoxy-4-hydroxymandelic acid (vma) by microfiber chromatography.
A method is presented for the rapid, precise, quantitative measurement of 3-methoxy4-hydroxymandelic acid (VMA) in urine. The method is unique in that it utilizes silica-gel-impregnated glass fiber as a support medium for thin-layer chromatography. An ethyl acetate extract of acidified urine was spotted and chromatographed in an ascending technic using tolulene, glacial acetic acid, and ethyl a...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2012
ISSN: 1600-5368
DOI: 10.1107/s1600536812050350