Crystal structure of 2-amino-5-oxo-4-(3,4,5-trimethoxy-phenyl)-4,5,6,7-tetrahydro-cyclopenta[b]pyran-3-carbonitrile, C₁₈H₁₈N₂O₅

Abstract

CCDC no.: 1504401The asymmetric unit of the title crystal structure is shown in the gure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters. Source of materialThe title compound was synthesized according to a reported procedure [6]. A mixture of 1,3-cyclopentadione

Crystal structure of 5-bromo-7-chloro-3,3a-dihydrocyclopenta[b]chromen-1(2H)-one, C12H8BrClO2

“…The bond lengths of C4-O1 and C9-O1 are 1.365(5) and 1.433(5) Å, respectively, and C9-C10 is 1.513(6) Å, which is longer than that of C9-C8 1.499(6) Å. Compared with similar structures [4][5][6][7], the title compound has two substituent groups on the benzo moiety.…”