ChemInform Abstract: TRANSITION METAL CATALYZED ASYMMETRIC ORGANIC SYNTHESES VIA POLYMER-ATTACHED OPTICALLY ACTIVE PHOSPHINE LIGANDS. SYNTHESIS OF R AMINO ACIDS AND HYDRATROPIC ACID BY HYDROGENATION

1978 ◽  
Vol 9 (18) ◽  
Author(s):  
N. TAKAISHI ◽  
H. IMAI ◽  
C. A. BERTELO ◽  
J. K. STILLE
Keyword(s):  
Amino Acids ◽  
Transition Metal ◽  
Optically Active ◽  
Phosphine Ligands ◽  
Organic Syntheses ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

scholarly journals New cyclization reactions in organic syntheses

2002 ◽  
Vol 74 (1) ◽  
pp. 159-166 ◽  
Author(s):  
Iwao Ojima
Keyword(s):  
Amino Acids ◽  
Transition Metal ◽  
Total Synthesis ◽  
Cyclization Reactions ◽  
Organic Syntheses ◽  
Carbocyclic Compounds ◽  
Efficient Construction ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Recent development in the transition metal-catalyzed cyclization reactions for organic syntheses in the author's laboratories is summarized, which includes (i) novel silylcarbocyclizations (SiCaCs) and carbonylative carbotricyclizations, (ii) intramolecular silylformylations and desymmerization of siloxydiynes by sequential double silylformylation, (iii) efficient total synthesis of (+)-prosopinine, (iv) enantioselective desymmetrization of aminodienes, and (iv) new and efficient routes to 1-azabicyclo[x.y.0]alkane amino acids. All these processes are catalyzed by Rh or Rh­Co complexes, and useful for rapid and efficient construction of a variety of heterocyclic and carbocyclic compounds. Mechanisms of these new carbocyclization and cyclohydrocarbonylation reactions are also discussed.

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