中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-methoxy-2-(prop-1'-enyl)-4-(prop-2''-enyloxy)anthraquinone | 126308-20-1 | C21H18O4 | 334.372 |
—— | 1-hydroxy-2-(prop-2'-enyl)-4-(prop-2'-enyloxy)-9,10-anthraquinone | 79207-98-0 | C20H16O4 | 320.345 |
—— | 1-methoxy-2-(prop-2'-enyl)-4-(prop-2''-enyloxy)anthraquinone | 130514-63-5 | C21H18O4 | 334.372 |
—— | 1,4-bis(prop-2'-enyloxy)-9,10-anthraquinone | 79207-97-9 | C20H16O4 | 320.345 |
1,4-二羟基蒽醌 | 1,4-dihydroxy-9,10-anthracenedione | 81-64-1 | C14H8O4 | 240.215 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (E)-1-methoxy-4-(2''-methylprop-2''-enyloxy)-2-(prop-1'-enyl)anthraquinone | 254896-06-5 | C22H20O4 | 348.398 |
—— | 4-(2''-chloroprop-2''-enyloxy)-1-methoxy-2-(prop-1'-enyl)anthraquinone | 157196-98-0 | C21H17ClO4 | 368.817 |
—— | 1-methoxy-4-hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carbaldehyde | 126308-22-3 | C16H10O5 | 282.252 |
—— | 2-(2'-chloroprop-2'-enyl)-1-hydroxy-4-methoxy-3-(prop-1''-enyl)anthraquinone | 157197-00-7 | C21H17ClO4 | 368.817 |
—— | (E)-1-hydroxy-4-methoxy-2-(2'-methylprop-2'-enyl)-3-(prop-1''-enyl)anthraquinone | 254896-07-6 | C22H20O4 | 348.398 |
—— | 2-(2'-chloroprop-2'-enyl)-1,4-dimethoxy-3-(prop-1''-enyl)anthraquinone | 157197-01-8 | C22H19ClO4 | 382.843 |
—— | (E)-1,4-dimethoxy-2-(2'-methylprop-2'-enyl)-3-(prop-1''-enyl)anthraquinone | 157197-03-0 | C23H22O4 | 362.425 |
—— | 1-methoxy-2-(2'-methylprop-2'-enyl)-3-(prop-1''-enyl)anthraquinone | 254896-11-2 | C22H20O3 | 332.399 |
—— | 2-formyl-1,4-dimethoxy-3-(2'-methylprop-2'-enyl)anthraquinone | 254896-09-8 | C21H18O5 | 350.371 |
—— | 3-formyl-1-methoxy-2-(2'-methylprop-2'-enyl)anthraquinone | 254896-13-4 | C20H16O4 | 320.345 |
—— | 1-hydroxy-2-(2'-methylprop-2'-enyl)-3-(prop-1''-enyl)anthraquinone | 254896-10-1 | C21H18O3 | 318.372 |
—— | (4'R,5'R)-2-(4',5'-dimethyl-1',3'-dioxolan-2'-yl)-4-hydroxy-1-methoxyanthraquinone | 126308-23-4 | C20H18O6 | 354.359 |
—— | (4'R,5'R)-2-(4',5'-dimethyl-1',3'-dioxolan-2'-yl)-1-methoxy-4-(2''-methylprop-2''-enyloxy)anthraquinone | 126308-27-8 | C24H24O6 | 408.451 |
—— | 2-(1',2'-dihydroxypropyl)-4-(2''-ethylprop-2''-enyloxy)-1-methoxyanthraquinone | 254896-15-6 | C23H24O6 | 396.44 |
—— | (+/-)-7-hydroxy-11-methoxy-9-methylidene-7,8,9,10-tetrahydronaphthacene-5,12-dione | 254895-97-1 | C20H16O4 | 320.345 |
—— | 3-(1'',2''-dihydroxypropyl)-1-methoxy-2-(2'-methylprop-2'-enyl)anthraquinone | 254896-12-3 | C22H22O5 | 366.414 |
—— | (4'R,5'R)-2-(4',5'-dimethyl-1',3'-dioxolan-2'-yl)-4-hydroxy-1-methoxy-3-(2''-methylprop-2''-enyl)anthraquinone | 130514-67-9 | C24H24O6 | 408.451 |
—— | (+/-)-7-hydroxy-6,11-dimethoxy-9-methylidene-7,8,9,10-tetrahydronaphthacene-5,12-dione | 145660-70-4 | C21H18O5 | 350.371 |
—— | 2-(1',2'-dihydroxypropyl)-1,4-dimethoxy-3-(2''-methylprop-2''-enyl)anthraquinone | 254896-08-7 | C23H24O6 | 396.44 |
—— | 2-(1',2'-dihydroxypropyl)-3-(2''-ethylprop-2''-enyl)-1,4-dimethoxyanthraquinone | 254896-17-8 | C24H26O6 | 410.467 |
—— | 1,5,12-trimethoxy-1,4-dihydronaphtho[2,3-g]isochromene-3,6,11-trione | 157197-04-1 | C20H16O7 | 368.343 |
—— | (7S,9S)-7,9-dihydroxy-9-hydroxymethyl-6,11-dimethoxy-7,8,9,10-tetrahydronaphthacene-5,12-dione | 254896-33-8 | C21H20O7 | 384.386 |
—— | (4'R,5'R)-2-(4',5'-dimethyl-1',3'-dioxolan-2'-yl)-4-hydroxy-3-(2''-methylprop-2''-enyl)anthraquinone | 130514-68-0 | C23H22O5 | 378.425 |
The methylidene tetracycle (2) has been synthesized in 11 steps from quinizarin (5) in an overall yield of 38% by using a highly ecient selective dihydroxylation step and an intramolecular ene cyclization. Also prepared with the selective dihydroxylation methodology were the silyloxy alkene (3) and the 6-demethoxy alkene (4). A mixture (1 : 2) of the (E)- and (Z)-isomers of the ethylidene compound (6) has been prepared by similar methods. The products resulting from the reactions of AD-mix-α and AD-mix-β on the alkenes (1)–(3) and (6) have been investigated and their stereochemistries assigned by using 1 H n.m.r. and NOESY experiments, and molecular modelling of acetonide derivatives. An X-ray crystal structure of the acetate (64) has confirmed the relative stereochemical assignments.