TY - JOUR
T1 - 9-(2-methylphenyl)-3,4,5,6,9,10-hexahydroxanthene-1,8(2H,7H)-dione
AU - Brito-Arias, Marco
AU - Tapia-Albarrán, Manuel
AU - Padilla-Martínez, Itzia
AU - Martínez-Martínez, Francisco
AU - Espinosa, Georgina
AU - Molins, Elies
AU - Espinosa, Enrique
N1 - Funding Information:
We are grateful to Dr. Francisco Delgado ENCB-IPN for NMR determination, to CONACYT for financial support, and grant (1574P-9507) to M. T.
PY - 1999/7
Y1 - 1999/7
N2 - Several 9-(2-R phenyl)xanthenediones have been synthesized and the x-ray diffraction structure for the 2-methylphenyl derivative (4b) has been determined. This compound crystallizes in the monoclinic system, space group P21/n, with a = 11.729 (3), b = 9.674 (3), c = 14.628 (4) Å, and β = 106.30°. It presents a partially hydrogenated xanthene system in distorted boat conformation for the heterocyclic central ring, and an almost ideal envelope conformation for the outer rings. The aromatic substituent at the ninth position is at 84° in angle with the xanthene system.
AB - Several 9-(2-R phenyl)xanthenediones have been synthesized and the x-ray diffraction structure for the 2-methylphenyl derivative (4b) has been determined. This compound crystallizes in the monoclinic system, space group P21/n, with a = 11.729 (3), b = 9.674 (3), c = 14.628 (4) Å, and β = 106.30°. It presents a partially hydrogenated xanthene system in distorted boat conformation for the heterocyclic central ring, and an almost ideal envelope conformation for the outer rings. The aromatic substituent at the ninth position is at 84° in angle with the xanthene system.
KW - Heterocyclic fused rings
KW - X-ray diffraction
KW - Xanthenedione
UR - http://www.scopus.com/inward/record.url?scp=0033236812&partnerID=8YFLogxK
U2 - 10.1023/A:1009583417391
DO - 10.1023/A:1009583417391
M3 - Artículo
SN - 1074-1542
VL - 29
SP - 759
EP - 763
JO - Journal of Chemical Crystallography
JF - Journal of Chemical Crystallography
IS - 7
ER -