Synthetic Entry into 1-Phosphono-3-azabicyclo[3.1.0]hexanes
摘要:
3-Azabicyclo[3.1.0]hex-2-en-1-yl phosphonates were prepared in a five-step reaction route from beta-ketophosphonates. The key steps in this sequence are an atom-transfer radical cyclization and an unforeseen lithium halogen exchange with n-BuLi. The cyclization reaction proceeds with excellent diastereoselectivity. The resulting cyclic imines were reduced, and 3-azabicyclo[3.1.0]hexan-1-yl phosphonates were obtained.
Duncan, Dean C.; Trumbo, Todd A.; Almquist, Catharine D., Journal of Heterocyclic Chemistry, 1987, vol. 24, p. 555 - 560
作者:Duncan, Dean C.、Trumbo, Todd A.、Almquist, Catharine D.、Lentz, Teresa A.、Beam, Charles F.
DOI:——
日期:——
Huff, Ann M.; Beam, Charles F., Journal of Heterocyclic Chemistry, 1986, vol. 23, p. 1343 - 1346
作者:Huff, Ann M.、Beam, Charles F.
DOI:——
日期:——
Synthetic Entry into 1-Phosphono-3-azabicyclo[3.1.0]hexanes
作者:Wouter Debrouwer、Thomas S. A. Heugebaert、Kristof Van Hecke、Christian V. Stevens
DOI:10.1021/jo401185u
日期:2013.9.6
3-Azabicyclo[3.1.0]hex-2-en-1-yl phosphonates were prepared in a five-step reaction route from beta-ketophosphonates. The key steps in this sequence are an atom-transfer radical cyclization and an unforeseen lithium halogen exchange with n-BuLi. The cyclization reaction proceeds with excellent diastereoselectivity. The resulting cyclic imines were reduced, and 3-azabicyclo[3.1.0]hexan-1-yl phosphonates were obtained.