Preparation of 2-BF3-Substituted 1,3-Dienes and Their Diels−Alder/Cross-Coupling Reactions

2005 ◽  
Vol 7 (12) ◽  
pp. 2481-2484 ◽  
Author(s):  
Subhasis De ◽  
Mark E. Welker
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Cross Coupling Reactions

Preparation of 2-Trialkylsiloxy- Substituted 1,3-Dienes and Their Diels−Alder/Cross-Coupling Reactions

2007 ◽  
Vol 9 (9) ◽  
pp. 1623-1626 ◽  
Author(s):  
Ramakrishna R. Pidaparthi ◽  
Mark E. Welker ◽  
Cynthia S. Day ◽  
Marcus W. Wright
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Cross Coupling Reactions

Barium Hydride Promoted Homocoupling and Cross-Coupling Reactions of Enones: An Alternative Entry to Diels-Alder Adducts

Synlett ◽  
2007 ◽  
Vol 2007 (1) ◽  
pp. 0141-0145 ◽  
Author(s):  
Akira Yanagisawa ◽  
Ai Shinohara ◽  
Hiroshi Takahashi ◽  
Takayoshi Arai
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Cross Coupling Reactions

Preparation of 2-Silicon-Substituted 1,3-Dienes and Their Diels−Alder/Cross-Coupling Reactions

2009 ◽  
Vol 74 (21) ◽  
pp. 8290-8297 ◽  
Author(s):  
Ramakrishna R. Pidaparthi ◽  
Christopher S. Junker ◽  
Mark E. Welker ◽  
Cynthia S. Day ◽  
Marcus W. Wright
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Cross Coupling Reactions

Optimized Synthesis of 7-Aza-Indazoles by Diels–Alder Cascade and Associated Process Safety

2020 ◽  
Author(s):  
Nicolas Brach ◽  
Vincent Le Fouler ◽  
Vincent Bizet ◽  
Marian Lanz ◽  
Pascale Hoehn ◽  
...  
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Process Safety ◽  
One Pot ◽  
Carbon And Nitrogen ◽  
Dsc Studies ◽  
Cross Coupling Reactions ◽  
Selection Of

Although pyrimidines are not among the most reac-tive partners in intramolecular inverse-electron de-mand [4πs+2πs] reactions with alkynes, they could be activated under mild and practical conditions, leading to fused nitrogen-containing heterocycles. We report an optimized synthesis of a 5-iodo-7-aza-indazole by a one-pot Diels–Alder cascade that starts from a pyrimidine substituted in the 2-position by an (alkynyl)hydrazone. The safety of the process was carefully studied by DSC studies. Eventually, a selection of cross-coupling reactions of 17 was studied and allowed the introduction of carbon- and nitrogen-based nucleophiles at the C5-position in good to excellent yields.

ChemInform Abstract: Preparation of 2-Silicon-Substituted 1,3-Dienes and Their Diels-Alder/Cross-Coupling Reactions.

ChemInform ◽  
2010 ◽  
Vol 41 (12) ◽  
Author(s):  
Ramakrishna R. Pidaparthi ◽  
Christopher S. Junker ◽  
Mark E. Welker ◽  
Cynthia S. Day ◽  
Marcus W. Wright
Keyword(s):  
Cross Coupling ◽  
Diels Alder ◽  
Coupling Reactions ◽  
Cross Coupling Reactions
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