空桐树的化学成分研究

Vol 20HUANGPing,etal:ChemicalConstituentsintheHeartwoodofPaulowniakawakamii

273

Hz,H 11),1.83(2H,,tJ=6.6Hz,H 12),1.61

13

(6H,s,H 14andH 15);http://doc.wendoc.compachol(3)

KBr

1

[8,12]

(C 5 ),107 6(C 2),107 1(C 2 ),101 5( O CH2 O ),101 3( O CH2 O ),91 9(C 8),87 7

(C 7),86 0(C 7 ),75 0(C 9),71 8(C 9 ),60 6(C 8 )

Sitosterylplamitate(6) Whiteamorphous

KBr 1

powder IR m:3426,1738,1466,1416,1381,maxc1177,722;APCI MSm/z(rel int ):397[M+H C16H32O2](100);HNMR#:5 38(1H,d,J=4 7Hz,H 6),4 62(1H,m,H 3),2 32(2H,d,J=7 3Hz,H 4),2 27(2H,,tJ=7 5Hz,H 2 ),2 01(1H,m,Hb 12),1 98(1H,m,Hb 7),1 86(1H,m,Hb 1),1 85(1H,m,H 2),1 67(1H,m,H 25),1 61(6H,m,H 15,H 16andH 3 ),1 58(1H,m,H 2),1 56(1H,m,H 7a),1 50(2H,m,H 11),1 45(1H,m,H 8),1 37(1H,m,H 20),1 29(28H,m,H 4 H 15 ,H 22,H 28),1 16(3H,m,Ha 12andH 23),1 15(1H,m,Ha 1),1 12(1H,m,H 17),1 03(3H,s,H 19),1 02(1H,m,H 14),0 94(1H,m,H 24),0 93(3H,d,J=6 4Hz,H 21),0 93(1H,m,H 9),0 89(3H,,tJ=6 8Hz,H 16 ),0 86(3H,,tJ=7 4Hz,H 29),0 85(3H,d,J=7 0Hz,H 26),0 83(3H,d,H 27),0 69(3H,s,H 18);

13

+

1

[6,17]

Yellowneeds(MeOH),

mp 138 140#;UV(MeOH)!,276;maxnm:202,252IR m:3354,1641,1591,1369,1272,1239,maxc1153,937,845,724;APCI MSm/z(rel int ):243

+1

[M+H](100);HNMR#:8 13(1H,dd,J=7 6Hz,H 8),8 07(1H,dd,J=7 6Hz,H 5),7 75(1H,td,J=7 6,1 6Hz,H 7),7 71(1H,td,J=7 6,1 6Hz,H 6),7 32(1H,s,3 OH),5 22(1H,t,tJ=7 3,1 3Hz,H 12),3 27(2H,d,J=7 3Hz,

13

H 11),1 80(3H,s,H 15),1 69(3H,s,H 14);CNMRdataseeTable1

Sesamin(4) Colourlessneeds(MeOH),mp122 124#;UV(MeOH)!,287;maxnm:207,237IR m:2968,1042,1315,1135,954,750;ESI MSmaxcm/z(rel int ):377[M+Na]

+

KBr

1

[13,14]

(100);HNMR#:

1

6 86(2H,d,J=1 4Hz,H 2andH 2 ),6 81(2H,dd,J=8 1,1 5Hz,H 6andH 6 ),6 78(2H,d,J=7 9Hz,H 5andH 5 ),5 95(4H,s, O CH2 O ),4 72(2H,d,J=4 4Hz,H 7andH 7 ),4 24(2H,dd,J=9 2,2 3Hz,Ha 9andHa 9 ),3 88(2H,dd,J=9 3,3 7Hz,Hb 9andHb 9 ),3 06(2H,m,H 8andH 8 );CNMR#:148 2(C 4andC 4 ),147 3(C 3andC 3 ),135 3(C 1andC 1 ),119 5(C 6andC 6 ),108 4(C 5andC 5 ),106 7(C 2andC 2 ),101 3( O CH2 O ),86 0(C 7andC 7 ),71 9(C 9andC 9 ),54 5(C 8andC 8 )

Paulownin(5) Colourlessneeds(MeOH),mp 105 107#:UV(MeOH)!,287;maxnm:207,237IR m:3452,2870,1493,1444,1255,1037,934,maxc811;ESI MSm/z(rel int ):393[M+Na]

1

+

KBr

1

[14 16]

13

C

NMR#:173 6(C 1 ),140 0(C 5),122 8(C 6),

73 9(C 3),56 9(C 14andC 17),50 3(C 9),46 1(C 4),42 4(C 13),40 0(C 12),38 4(C 4),37 3(C 1),36 8(C 10),36 4(C 20),35 0(2 ),34 2(C 22),32 1(C 7andC 8),29 3 29 9(C 4 14 ),29 4(C 25),28 5(C 2),28 1(C 16),26 4(C 23),25 3(C 3 ),24 5(C 15),23 3(C 28),22 9(C 15 ),21 3(C 11),20 0(C 26),19 6(C 19),19 3(C 27),19 0(C 21),14 3(C 16 ),12 2(C 29),12 1(C 18).

Hydrolysisof6

Asolutionof6(20mg)in2NNaOH MeOH(4mL)wasrefluxedfor4h.H2Owasaddedtothereactionmixture,whichwasthenextractedwithpetro.lThepet rollayerwaswashedwithH2OandconcentratedunderN2toyield http://doc.wendoc.comPCI MSm/z:415[M+H],397[M+H H2O].TheH2Olayerwasadjus tedtopH=7withHC,lthenextractwithCHCl3.Af terremovingCHCl3underN2,theresiduein2NHCl MeOH(4mL)wasrefluxedfor6h.H2Owasaddedtow+

+

(100);HNMR#:6 95(1H,d,J=1 5Hz,H 2 ),

6 92(1H,s,H 2),6 87(1H,m,H 6 ),6 85(1H,m,H 5),6 80(1H,d,J=8 0Hz,H 5 ),5 98(2Hs, O CH2 O ),5 96(2H,s, O CH2 O ),4 84(2H,J=5 0Hz,H 6andH 7 ),4 82(1H,s,H 7),4 51(1H,dd,J=9 1,0 8Hz,Hb 9 ),4 04(1H,d,J=9 4Hz,Hb 9),3 91(1H,d,J=9 4Hz,Ha 9),3 83(1H,dd,J=9 2,6 1Hz,Ha 9 ),3 04(1H,m,H 8 );CNMR#:148 4(C 4),148 2(C 4 ),148 1(C 3),147 5(C 3 ),134 8(C 1 ),129 4(C 1),36 13

相关知识

鸡冠花的化学成分研究
月季花化学成分的研究
《鸡冠花的化学成分研究》
西藏雪莲花化学成分的研究Ⅰ
紫荆花化学成分的研究(Ⅱ)
马齿苋的化学成分研究
木瓜化学成分的研究
绣球花的化学成分研究
黄花酢浆草的化学成分研究
《川牛膝化学成分研究》.docx

网址: 空桐树的化学成分研究 https://www.huajiangbk.com/newsview2252894.html