ABSOLUTE-CONFIGURATION OF SEIRICUPROLIDE, A NEW PHYTOTOXIN FROM SEIRIDIUM-CUPRESSI

被引:8
作者
BARTOLUCCI, C
CERRINI, S
LAMBA, D
EVIDENTE, A
RANDAZZO, G
机构
[1] CNR,IST STRUTTURIST CHIM GIORDANO GIACOMELLO,AREA RIC ROMA,CP 10,I-00016 MONTEROTONDO,ITALY
[2] UNIV NAPOLI FEDERICO 2,DIPARTIMENTO SCI CHIMICOAGR,I-80055 PORTICI,ITALY
[3] UNIV NAPOLI FEDERICO 2,IST IND AGR,I-80055 PORTICI,ITALY
关键词
D O I
10.1107/S0108270191007412
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
C14H20O5, M(r) = 268.31, monoclinic, P2(1), a = 5.0680 (5), b = 19.519 (2), c = 7.3968 (8) angstrom, beta = 106.03 (1)-degrees, V = 703.3 (1) angstrom 3, Z = 2, D(x) = 1.27 g cm-3, lambda(Cu K-alpha) = 1.54184 angstrom, mu = 7.55 cm-1, F(000) = 288, T = 298 K, R = 0.029 for 1286 reflections with F(o) greater-than-or-equal-to 4-sigma(F(o)). The absolute configurations of C4, C5, C6, C7 and C13 are R, S, R, S and S respectively. The C1-C2 and C8-C9 double bonds have E and Z configurations respectively. The determination of the absolute configuration of the title compound also allows that of its trans-bromohydrin derivative to be established.
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页码:83 / 86
页数:4
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