Crystal structure of methyl 1-methyl-2-oxospiro[indoline-3,2′-oxirane]-3′-carboxylate
2015 ◽
Vol 71
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pp. o274-o275
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In the title compound, C12H11NO4, the dihedral angle between the indole ring system (r.m.s. deviation = 0.019 Å) and the oxirane ring is 88.8 (2)°. The oxirane O atom and the bridging ester O atom are in an approximate syn conformation [O—C—C—O = −25.4 (3)°] In the crystal, inversion dimers linked by pair of C—H...O hydrogen bonds generateR22(8) loops, where the C—H donor group forms part of the oxirane ring. A second C—H...O interaction arising from one of the C—H groups of the benzene ring links the dimers into [001] double chains.
2009 ◽
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2015 ◽
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2009 ◽
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2015 ◽
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2015 ◽
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2015 ◽
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pp. 424-426
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