枞酸自动氧化产物的研究  

STUDY ON AUTO-OXIDATION PRODUCTS OF ABIETIC ACID

作　　者：王涛[1] 粟子安[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,南京210037

出　　处：《林产化学与工业》1991年第3期173-181,共9页Chemistry and Industry of Forest Products

摘　　要：研究了纯氧中固态枞酸自动氧化主要氧化产物的结构,包括反应初期增加一个氧的氧化产物及不溶于正己烷的有色的深度氧化产物。通过色谱法分离纯化6个氧化产物,它们以甲酯形式存在的结构确定为:7α-羟基-13α,14α-环氧-Δ^(8(9))-枞酸甲酯,7-羰基-11-羟基-8,11,13-三烯枞酸甲酯,7-羰基-14-羟基-8,11,13-三烯枞酸甲酯,12α-羟基-7α,8α,13α,14α-二环氧枞酸甲酯,7-羰基-12α-羟基-13α,14α-环氧-Δ^(8(a))-枞酸甲酯,以及7,11,14-三羰基-12α,13α-环氧-Δ^(8(9))-枞酸甲酯。枞酸的氧化产物中还得到了稳定的分子量为412的枞酸聚合物的氧化裂解产物,显示枞酸自动氧化过程中同时伴随着聚合作用。Major products of auto-oxidation of solid state abietic acid in oxygen including those formed in the initial period and the thoroughly oxidated, colored products insoluble in n -hexane were studied. They were separated and purified by chromatographic method. Six products in methyl ester form were identified as: Methyl 7a -hydroxy-13a , 14a-epoxy-△2(9)-abieten-18-oate( Methyl 7-keto-ll-hydroxy-8, 11, 13-abietatrien-18-oate, Methyl 7-keto-14-hydroxy-8, 11, 13-abietatrien-18-oate; Methyl 12a-hydroxy-7a;8a;13a, 14a-diepoxy-abietan-18-oate; Methyl 7-keto-12a-hy-droxy-13a ,14a-epoxy-△2(9)-abieten-18-oate,a. Methyl 7,11 ,14-triketo-12a , 13a-epoxy-△2(9)-abieten-18-oate. A stable product (molecular weight =412) resulted by decomposition of abietic acid dipolymer was also obtained together with auto-oxidation products. It shows that the auto-oxidation of abietic acid is accompanied with oxidation polymerization.

关 键 词：枞酸 氧化 松香 环氧 树脂酸 

分 类 号：TQ351.014[化学工程]