9-(4-Hydroxy-3-methoxyphenyl)-3,3,6,6-tetramethyl-3,4,5,6-tetrahydro-9H-xanthene-1,8(2H,7H)-dione

被引：2

作者：

Hasanudin, Noorhafizah ^{[2
]}

Rahim, Aisyah Saad Abdul ^{[2
]}

Mohamed, Nornisah ^{[2
]}

Quah, Ching Kheng ^{[1
]}

Fun, Hoong-Kun ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Phys, Xray Crystallog Unit, Usm 11800, Penang, Malaysia

[2] Univ Sains Malaysia, Sch Pharmaceut Sci, Usm 11800, Penang, Malaysia

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2010年 / 66卷

关键词：

X-RAY; DERIVATIVES;

D O I：

10.1107/S1600536810020258

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In the title compound, C24H28O5, the two cyclohexene rings adopt envelope conformations, and the planes through the coplanar atoms makes dihedral angles of 82.86 (6) and 77.90 (6)degrees with the benzene ring. The two cyclohexene rings make a dihedral angle of 5.33 (6)degrees between their least-squares planes. The pyran ring adopts a flattened boat conformation. In the crystal packing, molecules are linked into two-dimensional networks parallel to the ab plane via O-H center dot center dot center dot O and C-H center dot center dot center dot O interactions.

引用

页码：O1538 / U288

页数：13

共 12 条

[1] TABLES OF BOND LENGTHS DETERMINED BY X-RAY AND NEUTRON-DIFFRACTION .1. BOND LENGTHS IN ORGANIC-COMPOUNDS [J].

ALLEN, FH ;

KENNARD, O ;

WATSON, DG ;

BRAMMER, L ;

ORPEN, AG ;

TAYLOR, R .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1987, (12) :S1-S19

[2]

[Anonymous], 2009, APEX2 SAINT SADABS

[3] Exploring the potential of xanthene derivatives as trypanothione reductase inhibitors and chloroquine potentiating agents [J].

Chibale, K ;

Visser, M ;

van Schalkwyk, D ;

Smith, PJ ;

Saravanamuthu, A ;

Fairlamb, AH .

TETRAHEDRON, 2003, 59 (13) :2289-2296

[4] A NITROGEN-GAS-STREAM CRYOSTAT FOR GENERAL X-RAY-DIFFRACTION STUDIES [J].

COSIER, J ;

GLAZER, AM .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1986, 19 (02) :105-107

[5] GENERAL DEFINITION OF RING PUCKERING COORDINATES [J].

CREMER, D ;

POPLE, JA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (06) :1354-1358

[6] Microwave irradiation for accelerating the synthesis of acridine and xanthene derivatives from dimedone [J].

El Ashry, ESH ;

Awad, LF ;

Ibrahim, ESI ;

Bdeewy, OK .

ARKIVOC, 2006, :178-186

[7] A facile regioselective synthesis of novel spiro-thioxanthene and spiro-xanthene-9′,2-[1,3,4]thiadiazole derivatives as potential analgesic and anti-inflammatory agents [J].

Hafez, H. N. ;

Hegab, M. I. ;

Ahmed-Farag, I. S. ;

El-Gazzar, A. B. A. .

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2008, 18 (16) :4538-4543

[8]

Ion R.M., 1997, PROGR CATAL, V2, P55

[9] A short history of SHELX [J].

Sheldrick, George M. .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008, 64 :112-122

[10]

SILL AD, 1977, Patent No. 4008240

← 1 2 →