6-Hydroxymethyl-4-methoxy-2H-pyran-2-one (Opuntiol)
نویسندگان
چکیده
The title compound, C(7)H(8)O(4), isolated from Opuntia dillenii Haw (Cacta-ceae), is almost planar [maximum deviation of 0.027 (2) Å] except for the H atoms of the methylene and methyl groups. The crystal packing is stabilized by C-H⋯O and O-H⋯O inter-molecular hydrogen bonds, resulting in the formation of a three-dimensional network.
منابع مشابه
(6S*)-6-[(1S*,2R*)-1,2-Dihydroxypentyl]-4-methoxy-5,6-dihydro-2H-pyran-2-one
The title compound, C11H18O5, was isolated from a liquid culture of Pestalotiopsis sp. In the mol-ecule, the pyran-2-one ring assumes a half-chair conformation. The two terminal C atoms of the pentyl group were refined as disordered over two sets of sites, with refined occupancies of 0.881 (10) and 0.119 (10). In the crystal, mol-ecules are linked via O-H⋯O hydrogen bonds forming a three-dimens...
متن کاملN,N-Diethyl-4-[9-methoxy-6-(4-methoxyphenyl)-5-methyl-2-phenyl-2H-benzo[h]chromen-2-yl]aniline
In the title compound, C(38)H(37)NO(3), the pyran ring has an envelope conformation with the quaternary C(q) atom as the flap atom. The dihedral angle formed between the meth-oxy-phenyl group and the naphthalene ring system is 67.32 (6)°. The ethyl-amino groups lie to the same side of the plane through the phenyl ring and form dihedral angles of 84.6 (3) and 75.8 (2)° with it.
متن کاملAssociation Phase Transfer Catalyst with Electro-organic Synthesis of 4-(Dihydroxyphenylthio)-6-methyl-2H-pyran- 2-One Derivatives
Introduction The number of natural and synthetic 2H-pyran-2-one derivatives has been reported to exert notably the potential biological activity [1] and medicinal application such as: anticancer activity [2] hepatoprotective activity [3]. On the other hand, catechol derivatives are promising group of compounds worthwhile for further investigation, which may lead to the discovery of selective ac...
متن کاملComplete reduction of 2H-pyran-2-one moiety of coumarin and 6-methyl coumarin by Colletotrichum capsici.
The microbial transformation of coumarin (1) and 6-methyl coumarin (2) using Colletotrichum capsici gave 2-(3'-hydroxypropyl) phenol (3) and 2-(3'-hydroxypropyl)-4-methyl phenol (4). The phytopathogenic fungi effectively reduced the 2H-pyran-2-one moiety of both parent coumarins to respective alcohols.
متن کاملThe first structural and spectroscopic characterisation of a ring-opened form of a 2H-naphtho[1,2-b]pyran: a novel photomerocyanine.
Heating 4-methoxy-1-naphthol with a 1,1-diarylprop-2-yn-1-ol gave the 2,2-diaryl-6-methoxy-2H-naphtho[1,2-b]pyran together with the novel merocyanine, (E)-2-[3',3'-bis(aryl)allylidene]-4-methoxynaphthalen-1(2H)-one. Brief UV-irradiation of the pyran favoured the formation of the (Z)-merocyanine with longer irradiation and/or acidic conditions favouring the (E)-isomer.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2009