Neighboring group effects in the regioselective cyclization of vicinal trans-1,2-bromohydrins to epoxides
摘要:
Bromocyclopentitols and amino (or amido) bromocyclopentitols having a C-Br bond trans to two different vicinal hydroxyl groups show selectivity in base-promoted epoxide formation. The role of adjacent polar substituents in directing bromohydrin cyclization is discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.
Neighboring group effects in the regioselective cyclization of vicinal trans-1,2-bromohydrins to epoxides
摘要:
Bromocyclopentitols and amino (or amido) bromocyclopentitols having a C-Br bond trans to two different vicinal hydroxyl groups show selectivity in base-promoted epoxide formation. The role of adjacent polar substituents in directing bromohydrin cyclization is discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.