These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.
4. Palladium-catalyzed propargylic substitution with phosphorus nucleophiles: efficient, stereoselective synthesis of allenylphosphonates and related compounds. Kalek M; Johansson T; Jezowska M; Stawinski J Org Lett; 2010 Oct; 12(20):4702-4. PubMed ID: 20853904 [TBL] [Abstract][Full Text] [Related]
5. Organocatalytic asymmetric sulfa-michael/michael addition reactions: a strategy for the synthesis of highly substituted chromans with a quaternary stereocenter. Wang XF; Hua QL; Cheng Y; An XL; Yang QQ; Chen JR; Xiao WJ Angew Chem Int Ed Engl; 2010 Nov; 49(45):8379-83. PubMed ID: 20931588 [No Abstract] [Full Text] [Related]
7. Synthesis of functionalized chromans by PnBu3-catalyzed reactions of salicylaldimines and salicylaldehydes with allenic ester. Sun YW; Guan XY; Shi M Org Lett; 2010 Dec; 12(24):5664-7. PubMed ID: 21070027 [TBL] [Abstract][Full Text] [Related]
8. An anti-tetraamination of a 1,3-diene unit via cascade annulations of the azulenone scaffold with dicarbonyl azo-compounds. Ishigaki Y; Mahendar V; Oguri H; Oikawa H Chem Commun (Camb); 2010 May; 46(19):3304-5. PubMed ID: 20442894 [TBL] [Abstract][Full Text] [Related]
9. Efficient syntheses of thiochromans via cationic cycloadditions. Katritzky AR; Button MA J Org Chem; 2001 Aug; 66(16):5595-600. PubMed ID: 11485489 [TBL] [Abstract][Full Text] [Related]
10. Aluminum triflate catalyzed tandem reactions of D-galactal: toward chiral benzopyrans, chromenes, and chromans. Simelane SB; Kinfe HH; Muller A; Williams DB Org Lett; 2014 Sep; 16(17):4543-5. PubMed ID: 25162834 [TBL] [Abstract][Full Text] [Related]
11. Synthesis of ionic liquid-supported sulfonyl azide and its application in diazotransfer reaction. Muthyala MK; Choudhary S; Kumar A J Org Chem; 2012 Oct; 77(19):8787-91. PubMed ID: 22958129 [TBL] [Abstract][Full Text] [Related]
12. Efficient catalytic, oxidative lactonization for the synthesis of benzodioxepinones using thiazolium-derived carbene catalysts. Rose CA; Zeitler K Org Lett; 2010 Oct; 12(20):4552-5. PubMed ID: 20863078 [TBL] [Abstract][Full Text] [Related]
13. Pd-catalyzed direct C-H bond sulfonylation of azobenzenes with arylsulfonyl chlorides. Zhang D; Cui X; Zhang Q; Wu Y J Org Chem; 2015 Feb; 80(3):1517-22. PubMed ID: 25558920 [TBL] [Abstract][Full Text] [Related]
14. DMAP-Catalyzed [2 + 4] Cycloadditions of Allenoates with N-Acyldiazenes: Direct Method to 1,3,4-Oxadiazine Derivatives. Zhang Q; Meng LG; Zhang J; Wang L Org Lett; 2015 Jul; 17(13):3272-5. PubMed ID: 26061012 [TBL] [Abstract][Full Text] [Related]
15. Facile construction of functionalized 4H-chromene via tandem benzylation and cyclization. Fan J; Wang Z Chem Commun (Camb); 2008 Nov; (42):5381-3. PubMed ID: 18985217 [TBL] [Abstract][Full Text] [Related]
16. Formal [3 + 3] cycloaddition approach to chromenes and chromanes. Concise total syntheses of (+/-)-rhododaurichromanic acids A and B and methyl (+/-)-daurichromenic ester. Kurdyumov AV; Hsung RP; Ihlen K; Wang J Org Lett; 2003 Oct; 5(21):3935-8. PubMed ID: 14535747 [TBL] [Abstract][Full Text] [Related]
17. Organocatalytic asymmetric tandem Michael addition-hemiacetalization: a route to chiral dihydrocoumarins, chromanes, and 4H-chromenes. Lu D; Li Y; Gong Y J Org Chem; 2010 Oct; 75(20):6900-7. PubMed ID: 20857918 [TBL] [Abstract][Full Text] [Related]
18. 1,3-Dipolar cycloaddition of unstabilised azomethine ylides by Lewis base catalysis. Pandiancherri S; Ryan SJ; Lupton DW Org Biomol Chem; 2012 Oct; 10(39):7903-11. PubMed ID: 22930129 [TBL] [Abstract][Full Text] [Related]