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Acyloxydodecatrienes prepn - for 1,3,7-octatrienes, butadiene and carboxylic acids using palladium cpd catalysts

机译:酰氧基十二碳三烯炔-用于1,3,7-辛烯,丁二烯和羧酸的钯cpd催化剂

摘要

Acyloxydodecatrienes, useful as raw materials for long-chains alcohols or unsatd. carboxylic acids and synthetic drying oils, are prepd. by reacting an opt. lower alkyl-substd. 1,3,7-octatriene with butadiene and with a 2 - 20C carboxylic acid, esp. acetic, propionic or benzoic acid, in the presence of a salt of Pd(II) with an organic acid, esp. Pd(OAc)2, or a chelate complex of Pd(II), esp. Pd acetyl acetonate, or Pd nitrate, pref. at 0 - 150 (40 - 120) degrees C. Pref. octatrienes have formula CH2=CR1-CH=CH-CH2-CH2-CR1=CH2 (where R1 is H or lower alkyl) and carboxylic acid is R2COOH (where R2 is alkyl, cycloalkyl, aryl or aralkyl); ratio ocatriene:butadiene:acid is 1 : 0.5 - 5.:0.1 - 1 and catalyst conc. is 1 x 10-4-1 g atom Pd/mole octariene. Resulting products have formulae: CH2=CR2CH2-CH2-CH=CHCHR2CH2-CH=CHCH2-OCOR2 and CH2=CR3CH2-CH2-CH=CH-CHR2-CH2-CH2-C(OCOR2)H-CH=CH2.
机译:酰氧基十二碳二烯,用作长链醇或未饱和醇的原料。制备羧酸和合成干燥油。通过反应一个选择。低级烷基取代的。 1,3,7-辛三烯与丁二烯和2-20C羧酸,尤其是。乙酸,丙酸或苯甲酸,在Pd(II)与有机酸形成的盐存在下,尤其是Pd(OAc)2或Pd(II)的螯合物,尤其是。乙酰丙酮钯或硝酸钯。在0-150(40-120)摄氏度下进行。辛烯具有式CH 2 = CR 1 -CH = CH-CH 2 -CH 2 -CR 1 = CH 2(其中R 1是H或低级烷基)和羧酸是R 2 COOH(其中R 2是烷基,环烷基,芳基或芳烷基);丙烯腈:丁二烯:酸的比例为1:0.5-5.:0.1-1和催化剂浓度为1。是1 x 10-4-1 g原子的Pd /摩尔辛烯。所得产物具有式:CH 2 = CR 2 CH 2 -CH 2 -CH = CHCHR 2 CH 2 -CH = CHCH 2 -OCOR 2和CH 2 = CR 3 CH 2 -CH 2 -CH = CH-CHR 2 -CH 2 -CH 2 -C(OCOR 2)H-CH = CH 2。

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