Vairaprakash, Pothiappan ; Periasamy, Mariappan (2008) New chiral titanium complexes for enantioselective reductive cyclizations of diimines to trans-2,3-diarylpiperazines Tetrahedron Letters, 49 (7). 1233-1236 . ISSN 0040-4039
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00404...
Related URL: http://dx.doi.org/10.1016/j.tetlet.2007.12.038
Abstract
Enantioselective intramolecular reductive coupling of diimines by chiral titanium complexes, prepared using a titanium(IV) reagent and hemisalen ligands derived from chiral β-amino alcohols, gives trans-2,3-diarylpiperazines in up to 97% ee.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Enantioselective Reductive Coupling; Diimine; Hemisalen Ligand; 2,3-Diarylpiperazines |
| ID Code: | 37276 |
| Deposited On: | 25 Apr 2011 08:08 |
| Last Modified: | 25 Apr 2011 08:08 |
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