منابع مشابه
4-Oxo-2-phenylchroman-6-yl propionate
In the structure of the title compound, C(18)H(16)O(4), both the S and R enanti-omers appear to occupy in a random way four symmetry-equivalent sites of the unit cell in an approximately 4:1/1:4 ratio. The chiral C atom of the pyrone ring together with the phenyl ring bonded to this atom are disordered over two positions, the occupancy factor of the major component being 0.809 (5). Adjacent mol...
متن کامل( S * ) - 2 , 7 , 8 - Trihydroxychroman - 4 - one
Reticumanone (1), a new chromanone, isolated from the leaves of Cinnamomum reticulatum Hay (Lauraceae), has been characterized as (S*)-2,7,8-trihydroxychroman-4-one, by means of spectroscopic methods.
متن کامل7-Methoxy-2-phenylchroman-4-one
In the title compound, C(16)H(14)O(3), the ring O atom and the two adjacent non-fused C atoms, as well as the attached phenyl ring, exhibit static disorder [occupancy ratio 0.559 (12):0.441 (12)]. The crystal packing features π-π [centroid-centroid distance = 3.912 (1) Å] and C-H⋯π inter-actions.
متن کامل791 - 795 2 , 4 - Dihydroxy - 7 - methoxy - 2 H - 1 , 4 - benzoxazin - 3 ( 4 H ) - one , an Inhibitor from Zea mays with Differential Activity against Soft
12,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-onel DIMBOA was extracted with ethyl acetate from acidified water homogenates of corn (Zea mays L.) seedlings. Pure DIMBOA or ethyl acetate extracts of corn tissue were added to bacterial growth medium at five concentrations (measured as hydroxamates). DIMBOA and corn extracts were more inhibitory to soft rot bacteria (Erwinia spp.) that are nonp...
متن کامل2-(4-Methylphenyl)-7-(2-methylpropoxy)-4H-chromen-4-one–6-chloro-2-(4-methylphenyl)-7-(2-methylpropoxy)-4H-chromen-4-one (19/1)
The title co-crystal, 0.95C(20)H(20)O(3)·0.05C(20)H(19)ClO(3), arises as the chloride carried over during the synthesis shares a position with an aromatic H atom; the partial occupancies are 0.947 (2) and 0.053 (2) for H and Cl, respectively. The mol-ecular structure is stabilized by intra-molecular C-H⋯O contacts, forming pseudo five- and six-membered rings with S(5) and S(6) graph-set motifs,...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2013
ISSN: 1600-5368
DOI: 10.1107/s1600536813001451