DOI QR코드

DOI QR Code

Reaction of Di-s-butoxyborane in Tetrahydrofuran with Selected Organic Compounds containing Representative Functional Groups. Catalytic Effect of Tetraalkoxyborate on the Reaction of Dialkoxyborane$^\dag$

  • Cha, Jin-Soon (Department of Chemistry, College of science, Yeungnam University) ;
  • Lee, Jae-Cheol (Department of Chemistry, College of science, Yeungnam University) ;
  • Kim, Jin-Euog (Department of Chemistry, College of science, Yeungnam University) ;
  • Lee, Kwang-Woo (Department of Chemistry, College of science, Yeungnam University) ;
  • Yoon, Mal-Sook (Department of Chemistry, College of science, Yeungnam University)
  • 발행 : 1987.08.20

초록

The approximate rate and stoichiometry of the reaction of excess di-s-butoxyborane with selected organic compounds containing representative functional groups under standardized conditions (tetrahydrofuran, $25^{\circ}C)$ were examined in order to define the characteristics of the reagent for selective reductions. And the catalytic effect of lithium tetra-s-butoxyborate on the reaction of di-s-butoxyborane was also studied in order to increase the utility of this reducing system. Di-s-butoxyborane reacts only with simple aldehydes. However the addition of 2.5 mole % of lithium tetra-s-butoxyborate shows the tremendous rate enhancement of reaction for aldehydes, ketones, anhydrides, acid chlorides, lactones, and epoxides. This catalytic effect is assumed to in situ formation of lithium trialkoxyborohydride.

키워드

참고문헌

  1. J. Org. Chem. v.37 H. C. Brown;P. Heim;N. M. Yoon
  2. J. Am. Chem. Soc. v.92 H. C. Brown;D. B. Bigley;S. K. Arora;N. M. Yoon
  3. J. Org. Chem. v.41 H. C. Brown;S. Krishnamurthy;N. M. Yoon
  4. J. Org. Chem. v.42 G. W. Kabalka;J. D. Baker, Jr.;G. W. Neal
  5. Tetrahedron v.32 C. F. Lane;G. W. Kabalka
  6. Bull. Korean Chem. Soc. v.4 N. M. Yoon;J. S. Cha;W. S. Park
  7. J. Am. Chem. Soc. v.55 A. B. Burg;H. I. Schlesinger
  8. Inorg. Chem. v.1 S. H. Rose;S. G. Shore
  9. J. Am. Chem. Soc. v.88 W. G. Woods;P. L. Strong
  10. Inorg. Chem. v.8 D. J. Pasto;V. Balasubramaniyan;P. W. Wojtkowski
  11. Organic Syntheses via Boranes H. C. Brown;G. W. Kramer;A. B. Levy;M. M. Midland

피인용 문헌

  1. Thirty Six Years of Research on the Selective Reduction and Hydroboration vol.32, pp.6, 1987, https://doi.org/10.5012/bkcs.2011.32.6.1808