Density Functional Theory Studies of Ruthenium-Catalyzed Bis-Diels−Alder Cycloaddition of 1,5-Cyclooctadiene with Alkynes

2003 ◽  
Vol 22 (26) ◽  
pp. 5478-5484 ◽  
Author(s):  
Xin Huang ◽  
Zhenyang Lin

2020 ◽  
Vol 41 (24) ◽  
pp. 2137-2150
Author(s):  
Evan Walter Clark Spotte‐Smith ◽  
Peiyuan Yu ◽  
Samuel M. Blau ◽  
Ravi S. Prasher ◽  
Anubhav Jain


2008 ◽  
Vol 63 (3) ◽  
pp. 321-330 ◽  
Author(s):  
Raj K. Bansal ◽  
Neelima Gupta ◽  
Surendra K. Kumawat

Computations of the concerted and diradical stepwise mechanisms of the Diels-Alder (DA) reactions on the >C=P− functionality of phosphinine and phosphinine sulfide with 1,3-butadiene at the density functional theory level B3LYP/6-311++G**//B3LYP/6-31G** give the values of energy of concert as 10.7 and 2.6 kcal mol−1, respectively. Similarly, the DA reaction of dimethyl acetylenedicarboxylate (DMAD) with the −CH=CH−CH=P− moiety of phosphinine or its sulfide has been investigated theoretically at the same level of theory. The results reveal that in the DA reaction of phosphinine, the role of sulfur is to oxidize phosphorus to generate a phosphinine sulfide intermediate, which subsequently undergoes DA reaction with 2,3-dimethylbutadiene or DMAD by a concerted mechanism to afford the respective cycloadducts.



RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101697-101706 ◽  
Author(s):  
Tuhin S. Khan ◽  
Shelaka Gupta ◽  
Md. Imteyaz Alam ◽  
M. Ali Haider

​The retro-Diels–Alder (rDA) reaction of partially saturated 2-pyrones were studied using density functional theory (DFT) calculations in polar and non-polar solvents, and fundamental descriptors were proposed to understand the electronic and solvent effect.



2002 ◽  
Vol 4 (22) ◽  
pp. 3789-3792 ◽  
Author(s):  
Garth A. Jones ◽  
Michael N. Paddon-Row ◽  
Michael S. Sherburn ◽  
Craig I. Turner


2020 ◽  
Author(s):  
Erica Mitchell ◽  
Thais Scott ◽  
Jie J Bao ◽  
Laura Gagliardi ◽  
Donald Truhlar


2020 ◽  
Author(s):  
Erica Mitchell ◽  
Thais Scott ◽  
Jie J Bao ◽  
Laura Gagliardi ◽  
Donald Truhlar


Synlett ◽  
2021 ◽  
Author(s):  
Takuya Kurahashi ◽  
Seijiro Matsubara ◽  
Rei Tomifuji ◽  
Shunpei Murano ◽  
Satoru Teranishi ◽  
...  

AbstractThe enantioselective oxa-Diels–Alder reaction of nonactivated substrates by utilizing FeCl3 and a 1,1′-bi-2-naphthol (BINOL) derived chiral phosphoric acid as a multiple activation catalyst is reported. Various oxygen-containing six-membered heterocycles were obtained in high yields and in an enantioselective manner. Density functional theory (DFT) calculations elucidate that both Lewis acidic and Brønsted acidic moieties in the catalyst system synergistically activate two lone pairs of an aldehyde to facilitate enantioselective addition reaction of dienes.



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