147396-58-5Relevant academic research and scientific papers
Catalytic asymmetric dienylation of achiral aldehydes using buta-2,3-dienylstannane in the presence of chiral Lewis acid and synergetic reagent
Yu, Chan-Mo,Lee, Seung-Joo,Jeon, Miyoo
, p. 3557 - 3558 (1999)
Efficientcatalytic asymmetric dienylation of achiral aldehydes with buta-2,3-dienyltributylstannane promoted by a BINOL-TiIV complex is achieved with high enantio-selectivity by the utilization of Et2BSPr1 The Royal Society of Chemistry 1999.
Dual amine and palladium catalysis in diastereo- and enantioselective allene carbocyclization reactions
Li, Meiling,Datta, Swarup,Barber, David M.,Dixon, Darren J.
supporting information, p. 6350 - 6353 (2013/02/23)
A pyrrolidine and Pd catalyzed diastereoselective carbocyclization of aldehyde and ketone-linked allenes has been developed. The cooperative organo/metal-catalyzed cyclization reaction, which presumably proceeds via an enamine intermediate, is efficient and broad in scope. Also, it has been extended to a catalytic asymmetric variant using diarylprolinol-based organocatalysts to afford substituted cyclopentane and pyrrolidine reaction products in up to 82% ee.
Enantioselective Diels-Alder reactions of optically active (buta-1,3-dien-2-yl)(salen)cobalt(iii) complexes
Chapman, John J.,Day, Cynthia S.,Welker, Mark E.
, p. 2273 - 2282 (2007/10/03)
The syntheses of two optically active (buta-1,3-dien-2-yl)(salen)Co complexes are reported. These dienyl complexes undergo Diels-Alder reactions with high enantioselectivity with a variety of dienophiles. One of the (salen)Co-substituted Diels-Alder cyclo
Synthesis of cobalt-substituted 1,3-diene complexes with unusual structures and their exo-selective Diels-Alder reactions
Wright, Marcus W.,Smalley Jr., Terrence L.,Welker, Mark E.,Rheingold, Arnold L.
, p. 6777 - 6791 (2007/10/02)
The synthesis and characterization (including crystallographic data) of several substituted-pyridine (Rpyr) cobalt bis(dimethylglyoxime) 1,3-butadiene complexes (R = H, tBu, 3,5-diMe, and N,N-dimethylamino) and their Diels-Alder reactions with a variety of dienophiles are reported here. The cobalt-carbon bonds in the Diels-Alder cycloadducts can be cleaved so that cobalt complexes as well as functionalized organic cycloadducts are recovered. Through these cobalt-carbon bond cleavage reactions, cobalt-diene complexes can serve as synthons for a variety of 1,3-dienes such as 1,3-butadiene, 2-(trimethylsiloxy)- 1,3-butadiene, iodoprene, (E)-1-methoxy-3-(trimethylsiloxy)-1,3-butadiene (Danishefsky's diene), and 1,2-dichloro-1,3-butadiene. The preparation of several cobalt-substituted 1,2- and 1,3-pentadiene complexes and highly exo-selective Diels-Alder reactions of the 1,3-pentadiene complexes are then discussed followed by demetalation reactions of these more highly substituted cobalt cycloadducts. These demetalation reactions maintain the stereochemical integrity found in the metal cycloadducts and also lead to cobalt recovery.
