(S)-Ipsdienol

(S)-Ipsdienol is a terpene alcohol. It is one of the major aggregation pheromones of the bark beetle. It was first identified from Ips confusus, in which it is believed to be a principle sex attractant.[1] It is suggested that the compound plays a role in interspecies communication between Ips latidens and Ips ini, facilitating reductions in competition for breeding material and/or mating interference.[2]

(S)-Ipsdienol
Names
IUPAC name
(4S)-2-methyl-6-methylideneocta-2,7-dien-4-ol
Other names
(S)-(+)-Ipsdienol, 2-Methyl-6-methylene-2,7-octadiene-4-ol, Ipsdienol
Identifiers
3D model (JSmol)
ECHA InfoCard 100.128.974
UNII
Properties
C10H16O
Molar mass 152.237 g·mol−1
Appearance Colorless
Hazards
Flash point 87 °C (189 °F; 360 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis

The compound has been synthesized from D-mannitol.[3] Alternative syntheses were realized through the asymmetric isoprenylation of correspondent aldehyde (prenal)[4] and alcohol (prenol).[5] Chiral resolution of racemic precursor has been found[6][7] to provide both enantiomers of ipsdienol in high enentiomeric purity and in preparative scale.

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gollark: The US's college system seems kind of insane, and would probably be less expensive if it wasn't like that.
gollark: If you didn't want that, you should have contacted the *anti-fire* department.
gollark: Then the fire department burns down your house as vengeance.
gollark: There were some incentive problems.

References
  1. Silverstein, Robert M; Rodin, J. Otto; Wood, David L. (October 1966). "Sex Attractants in Frass Produced by Male Ips confusus in Ponderosa Pine". Science. 154 (3748): 509–510. Bibcode:1966Sci...154..509S. doi:10.1126/science.154.3748.509 (inactive 2020-05-21). JSTOR 1720044.
  2. Miller, Daniel R.; Borden, John H.; King, G. G. S.; Slessor, Keith N. (1 August 1991). "Ipsenol: an aggregation pheromone for Ips latidens (Leconte) (Coleoptera: Scolytidae)". Journal of Chemical Ecology. 17 (8): 1517–1527. doi:10.1007/BF00984685. PMID 24257877.
  3. Hanessian, Stephen (1983). Total Synthesis of Natural Products: The 'Chiron' Approach. Pergamon press. p. 63. ISBN 978-0-08-029247-2.
  4. Zhang, Yu‐Long; He, Bo‐Jun; Xie, Yi‐Wen; Wang, Yu‐Hao; Wang, Yi‐Long; Shen, Yong‐Cun; Huang, Yi‐Yong (2019). "Enantioselective Isoprenylboration Reaction of Aldehydes Catalyzed by a Chiral Phosphoric Acid". Advanced Synthesis & Catalysis. 361 (13): 3074–3079. doi:10.1002/adsc.201900203.
  5. Xiang, Ming; Luo, Guoshun; Wang, Yuankai; Krische, Michael J. (2019). "Enantioselective iridium-catalyzed carbonyl isoprenylation via alcohol-mediated hydrogen transfer". Chemical Communications. 55 (7): 981–984. doi:10.1039/C8CC09706B. PMC 6339811. PMID 30608076.
  6. Kovalenko, V. N.; Prokhorevich, K. N. (2016). "Improved synthesis of optically active ipsdienol". Russian Journal of Organic Chemistry. 52 (5): 757–758. doi:10.1134/S1070428016050250.
  7. Kovalenko, V. N.; Matyushenkov, E. A. (2012). "Stereoselective synthesis of (R)- and (S)-Ipsdienols, pheromone components of bark beetles of the Ips family". Russian Journal of Organic Chemistry. 48 (9): 1168–1172. doi:10.1134/S1070428012090035.
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