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Scientia Silvae Sinicae ›› 2020, Vol. 56 ›› Issue (4): 170-180.doi: 10.11707/j.1001-7488.20200419

Special Issue: 测试专题

• Review • Previous Articles     Next Articles

Research Progress on Total Synthesis of Precursor Components of Sex Pheromones from Six of Pine Caterpillar Species in China

Fu Liu1,Zhongwei Yuan2,Xiangbo Kong1,Sufang Zhang1,Zhen Zhang1,*,Zhifeng Guo2,Zhenlin Li2,Yanhui Song2,Yibin Zhou3   

  1. 1. Key Laboratory of Forest Protection of National Forestry and Grassland Administration Research Institute of Forestry Ecology, Environnment and Protection, CAE Beijing 100091
    2. Saihanba Machinery Farm, Hebei Province Weichang 068466
    3. Forestry Service Center of Mengxian Town, Ning'er County, Yunnan Province Ning'er 665104
  • Received:2018-09-25 Online:2020-04-25 Published:2020-05-29
  • Contact: Zhen Zhang

Abstract:

There are six species of pine caterpillars in China,including pine caterpillars include Dendrolimus punctatus,D. superans,D. tabulaeformis,D. houi,D. spectabilis and D. kikuchii,and all the insects are serious pests of pine forests in China. Pine caterpillars have a strong reproductive capacity. When the pests break out,the all leaves of pines are eaten up quickly,which seriously hinders the growth of trees and even causes the trees to die. Furthermore,the pine caterpillars'infestation cause pines to decline,which can lead to the invasion of stem borers. Therefore,the control of pine caterpillars has always been an important research direction of forest entomologists in China. It is an important part of the comprehensive management of pine caterpillars to find an effective population monitoring method. Sex pheromone is an important means for the comprehensive management of pine caterpillars for its strong specificity and convenient application. Sex pheromone attractants can be used not only to monitor the occurrence period and population dynamics of pine caterpillars,but also to control the population number and prevalence by interfering with their mating. The active ingredients of sex pheromones in the 6 species of pine caterpillars could be divided into two main categories. The derivative of (Z,E)-5,7-dodecadien-1-ol and the derivative of (E,Z)-5,7-dodecadien-1-ol. Their precursors are the corresponding alcohols. In this paper,the synthesis methods of these two precursor compounds were summarized. The total synthesis of (Z,E)-5,7-dodecadien-1-ol could be roughly classified into three different synthetic ways. Route one,the Wittig reaction between aldehydes and phosphoranes; Route two,coupling reaction of E type iodinated alkene with unsaturated hydrocarbons; Other paths of reactions,including anti-Markovnikov addition of substituted olefins; rearrangement of thexylalkenyllalkynylboranes,and coupling reactions of organometallic reagents. In contrast,(E,Z)-5,7-dodecadien-1-ol could be synthesized by two ways. Route one,the Wittig reaction between α,β-unsaturated aldehydes and phosphoranes; Route two,coupling reaction of E type iodinated enol with alkynes. At present,the demand for sex pheromone of pine caterpillars is increasing day by day,and the design and optimization of its synthesis methods have become an important task. Consequently,this review will provide important reference for the researchers who carry out the similar research in China.

Key words: Dendrolimus spp., sex pheromone, (Z, E)-5, 7-dodecadien-1-ol, (E, Z)-5, 7-dodecadien-1-ol, total synthesis

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