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Cited by 10 publications
(4 citation statements)
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“…Okamoto and co-workers reported a novel synthesis of 1,2,3,4-tetrahydroquinoline derivatives through a cyclization of ω-vinylimines with Ti(O- i -Pr) 4 / i -PrMgX . Treatment of the ene-imines 209 with the titanium reagent followed by addition of water afforded the 3,4-disubstituted tetrahydroquinolines 210 through intermediate A in excellent yields and diastereoselectivities (Scheme ).…”
Section: Synthesis Of 1234-tetrahydroquinolines Involving the Generat...mentioning
confidence: 99%
“…Okamoto and co-workers reported a novel synthesis of 1,2,3,4-tetrahydroquinoline derivatives through a cyclization of ω-vinylimines with Ti(O- i -Pr) 4 / i -PrMgX . Treatment of the ene-imines 209 with the titanium reagent followed by addition of water afforded the 3,4-disubstituted tetrahydroquinolines 210 through intermediate A in excellent yields and diastereoselectivities (Scheme ).…”
Section: Synthesis Of 1234-tetrahydroquinolines Involving the Generat...mentioning
confidence: 99%
“…Employing Brintzinger-type ansa -zirconocene derivatives, the synthesis of chiral amino acids and esters or enantiomeric pure allylic amines becomes available. The in situ generation of η 2 -imine titanium complexes, derived from transient (η 2 -olefine)Ti(OPr i ) 2 derivativesand comparable intermediatesis proven by a broad range of coupling reactions. Particularly, η 2 -imine complexes are essential intermediates in catalytic transformations of olefins and N -alkyl arylamines leading to hydroaminoalkylation products, as shown for tantal amides, bis(pyridonate)zirconiumamides and tantalamidates, particularly in enantioselective amine synthesis . Bis(π-indenyl)titanocenedimethyl complexes are useful precatalysts in styrene hydroaminomethylations .…”
Section: Introductionmentioning
confidence: 99%
“…In 1991, Marson reported a one-pot stereocontrolled synthesis of a few substituted tricyclic γ-lactams via the condensation of 3-alkenamides with benzaldehyde in acidic media (Figure , the same below) . In 2004, Okamoto synthesized a pyrrolidine-containing tricycle using a divalent titanium reagent . The following year, Feldman prepared similar products using a cascade cyclization sequence evolving from the thermolyses of allenyl azides .…”
mentioning
confidence: 93%
“…Okamoto synthesized a pyrrolidine-containing tricycle using a divalent titanium reagent. 5 The following year, Feldman prepared similar products using a cascade cyclization sequence evolving from the thermolyses of allenyl azides. 6 The You group combined a tandem NHC-catalyzed aza-benzoin and Michael reaction to produce dihydroindenones, which can then be transformed to pyrrolidinone-containing tricycles.…”
mentioning
confidence: 99%