Palladium-catalyzed Si–C bond-forming silylation of aryl iodides with hydrosilanes: an enhanced enantioselective synthesis of silicon-stereogenic silanes by desymmetrization

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67113-67117 ◽  
Author(s):  
Li Chen ◽  
Jiang-Bo Huang ◽  
Zheng Xu ◽  
Zhan-Jiang Zheng ◽  
Ke-Fang Yang ◽  
...  

An enantioselective Pd-catalyzed silicon–carbon bond-forming silylation reaction of aryl iodides with hydrosilanes for the synthesis of silicon-stereogenic silanes has been developed with good enantioselectivity under mild conditions.

2016 ◽  
Vol 12 ◽  
pp. 2898-2905 ◽  
Author(s):  
Michal Medvecký ◽  
Igor Linder ◽  
Luise Schefzig ◽  
Hans-Ulrich Reissig ◽  
Reinhold Zimmer

Iodination of carbohydrate-derived 3,6-dihydro-2H-1,2-oxazines of type 3 using iodine and pyridine in DMF furnished 5-iodo-substituted 1,2-oxazine derivatives 4 with high efficacy. The alkenyl iodide moiety of 1,2-oxazine derivatives syn-4 and anti-4 was subsequently exploited for the introduction of new functionalities at the C-5 position by applying palladium-catalyzed carbon–carbon bond-forming reactions such as Sonogashira, Heck, or Suzuki coupling reactions as well as a cyanation reaction. These cross-coupling reactions led to a series of 5-alkynyl-, 5-alkenyl-, 5-aryl- and 5-cyano-substituted 1,2-oxazine derivatives being of considerable interest for further synthetic elaborations. This was exemplarily demonstrated by the hydrogenation of syn-21 and anti-24 and by a click reaction of a 5-alkynyl-substituted precursor.


2016 ◽  
Vol 7 (6) ◽  
pp. 3757-3762 ◽  
Author(s):  
Jiang Wu ◽  
Yafei Liu ◽  
Changhui Lu ◽  
Qilong Shen

A palladium-catalyzed difluoromethylthiolation of heteroaryl halides and triflates under mild conditions was described.


ChemInform ◽  
2005 ◽  
Vol 36 (15) ◽  
Author(s):  
Eric Fillion ◽  
Rebekah J. Carson ◽  
Vincent E. Trepanier ◽  
Julie M. Goll ◽  
Anna A. Remorova

Sign in / Sign up

Export Citation Format

Share Document