AgOTf-catalyzed cascade annulation of 5-hexyn-1-ols and aldehydes: enabling the diastereoselective synthesis of [6,6,6]-trioxa-fused ketals and hexahydro-2H-chromenes
| Title | AgOTf-catalyzed cascade annulation of 5-hexyn-1-ols and aldehydes: enabling the diastereoselective synthesis of [6,6,6]-trioxa-fused ketals and hexahydro-2H-chromenes | 
| Publication Type | Journal Article | 
| Year of Publication | 2025 | 
| Authors | Vinodkumar, R, Nakate, AK, Krishna, GRama, Kontham, R | 
| Journal | Chemical Communications | 
| Volume | 61 | 
| Issue | 5 | 
| Pagination | 973-976 | 
| Date Published | JAN | 
| Type of Article | Article | 
| ISSN | 1359-7345 | 
| Abstract | We report the unprecedented diastereoselective synthesis of novel [6,6,6]-trioxa-fused ketals via AgOTf-catalyzed cascade annulation of 5-hexyn-1-ols (with primary or secondary hydroxyl groups) and aldehydes through a [2+2+1+1] pathway. In contrast, 5-hexyn-1-ols with tertiary hydroxyl groups yield hexahydro-2H-chromenes via a [3+1+1+1] pathway.  |  
| DOI | 10.1039/d4cc05546b | 
| Type of Journal (Indian or Foreign) | Foreign  |  
| Impact Factor (IF) | 4.3  |  
Divison category: 
 Center for Material Characterization (CMC)
 Organic Chemistry
Database: 
Web of Science (WoS)
