Mechanism Studies on the CSI Reaction with Allyl Ethers by Varying p-Substituent

  • Jung, Young-Hoon (Organic & Medicinal Chemistry Laboratory, College of Pharmacy, Sungkyunkwan University) ;
  • Kim, Ji-Duck (Organic & Medicinal Chemistry Laboratory, College of Pharmacy, Sungkyunkwan University)
  • Published : 2003.09.01

Abstract

We examined the effect of p-substituents in p-substituted cinnamyl methyl ethers and 1-(p-substituted phenyl)allyl methyl ethers with CSI, and confirmed that the CSI reaction of allyl ethers (p-substituted ethers) is a competitive reaction of $S_Ni{\;}and{\;}S_N1$ mechanism according to the stability of the carbocation. And, the only terminal allylic amine was obtained through the migration reaction in thermodynamic reaction condition.

Keywords

References

  1. Barluenga, J., Faans, F. J., Sanz, R., Marcos, C., and Trabada, M., On the reactivity of o-lithioaryl ethers: tandem anion translocation and wittig rearrangement. Org. Lett., 4, 1587-1590 (2002) https://doi.org/10.1021/ol0258029
  2. Charetta, A. B., Molinaro, C., and Brochu, C., Catalytic asymmetric cyclopropanation of allylic alcohols with titanium-TADDOLate: Scope of the cyclopropanation reaction. J. Am. Chem. Soc., 123, 12168-12175 (2001) https://doi.org/10.1021/ja0108382
  3. Jung, Y. H. and Kim, J. D., One-pot synthesis of cinnamylamines with various protecting groups from cinnamyl ethers. Arch. Pharm. Res., 24, 371-376 (2001) https://doi.org/10.1007/BF02975178
  4. Jung, Y. H. and Kim, J. D., A Novel synthetic methods for $\alpha$-amino acids from allyl ethers via N-allylcarbamates. Arch. Pharm. Res., 23, 574-578 (2000) https://doi.org/10.1007/BF02975243
  5. Kim, J. D., Han, G., Jeong, L. S., Park, H. -J., Zee, O. P., and Jung, Y. H., Study of the stability of carbocations by chlorosulfonyl isocyanate reaction with ethers. Tetrahedron, 58, 4395-4402 (2002) https://doi.org/10.1016/S0040-4020(02)00413-1
  6. Kim, J. D., Han, G., Zee, O. P., and Jung, Y. H., Deprotection of benzyl and p-methoxybenzyl ethers by chlorosulfonyl isocyanate-sodium hydroxide. Tetrahedron Lett., 44, 733-735 (2003) https://doi.org/10.1016/S0040-4039(02)02648-5
  7. Kim, J. D., Lee, M. H., Han, G., Park, H., Zee, O. P., and Jung, Y. H., Synthesis of N-protected allylic amines from allyl ethers. Tetrahedron, 57, 8257-8266 (2001) https://doi.org/10.1016/S0040-4020(01)00822-5
  8. Kim, J. D., Lee, M. H., Lee, M. J., and Jung, Y. H., Novel synthetic method for N-Allylcarbamates from allyl ethers using chlorosulfonyl isocyanate. Tetrahedron Lett., 41, 5073-5076 (2000) https://doi.org/10.1016/S0040-4039(00)00776-0
  9. Kim, J. D., Zee, O. P., and Jung, Y. H., Regioselective and diastereoselective allylic amination using chlorosulfonyl isocyanate. A novel asymmetric synthesis of unsaturated aromatic 1,2-amino alcohols. J. Org. Chem., 68, 3721-3724 (2003) https://doi.org/10.1021/jo0267089
  10. Kuroboshi, M., Tanaka, M., Kishimoto, S., Goto, K., Takana, H., and Torii, S., Ni/Cr/Al Multi-metal redox-mediated alkeny-lation of aldehydes. Tetrahedron Lett., 40, 2785-2788 (1999) https://doi.org/10.1016/S0040-4039(99)00294-4
  11. March, J., Advanced Organic Chemistry (4th). John Wiley & Sons Inc., New York. pp. 326-327, (1992)
  12. Ponpipom, M. M., Yue, B. Z., Bugianesi, B. L., Brooker, D. R., Chang, M. N., and Shen, T. Y., Total synthesis of kadsurenone and its analogs. Tetrahedron Lett., 27, 309-312 (1986) https://doi.org/10.1016/S0040-4039(00)84004-6
  13. Sykes, P., A Guidebook to Mechanism in Organic Chemistry (6th). Longman Scientific & Technical. pp. 90-93, (1986)
  14. Verlhac, J. -B. and Pereyre, M., Organotin homoenolate equivalents-access to $\beta$-acyl- and $\beta$-aryl-propionaldehydes through heterosubstituted allyltins and vinyltins. Tetrahedron, 46, 6399-6412 (1990) https://doi.org/10.1016/S0040-4020(01)96010-7