[PDF][PDF] o-Quinone methides: intermediates underdeveloped and underutilized in organic synthesis
RW Van De Water, TRR Pettus - Tetrahedron, 2002 - academia.edu
Contents 1. Introduction to o-quinone methides 5367 1.1. Scope of this review 5368 1.2.
Evidence for the existence of o-QMs 5368 1.3. Theoretical considerations regarding …
Evidence for the existence of o-QMs 5368 1.3. Theoretical considerations regarding …
Regioselective alkyl transfer from phosphonium ylides to functionalized polyfluoroarenes
We report an unprecedented alkyl transfer from phosphonium ylides to polyfluoroarenes in a
highly regioselective manner. This reaction allows the introduction of a variety of alkyl …
highly regioselective manner. This reaction allows the introduction of a variety of alkyl …
The behavior of 2‐substituted‐1, 3‐diphenylpropane‐1, 3‐tione toward organophosphorus reagents
LS Boulos, R Shabana… - Heteroatom Chemistry: An …, 2000 - Wiley Online Library
Abstract The reaction of 2‐benzylidene‐1, 3‐diphenylpropanetrione (1a) with phosphorus
ylides 2a–c afforded the new phosphonium ylides 4a–c. Trialkyl phosphites 3a–c react with …
ylides 2a–c afforded the new phosphonium ylides 4a–c. Trialkyl phosphites 3a–c react with …
Reaction of 1-(diphenylmethylene)-2 (1H)-and 4-(diphenylmethylene)-1 (4H)-naphthalenones with thiol phosphoric acids, Lawesson reagent and phosphorus …
AA El-Kateb, IT Hennawy, R Shabana… - … , Sulfur, and Silicon …, 1991 - Taylor & Francis
Naphthalenone 1 reacts with thiol phosphoric acids 3 and 6 to give adducts 5 and 7,
respectively. Reaction of 1 with Lawesson reagent 8 and P4S10 gives adducts 9 and 10 …
respectively. Reaction of 1 with Lawesson reagent 8 and P4S10 gives adducts 9 and 10 …
Reaction of 5-arylmethylene-2-thioxo-4-thiazolidinones with some phosphonium ylides. Synthesis of thiazolidino [4, 5-x]-fused compounds
WM Abdou, ESMA Yakout, NAF Ganoub - Tetrahedron, 1995 - Elsevier
The reactions of the entitled compounds (4a) and (4b) with some phosphonium ylides (5a–
d) have been studied in considerable detail. By applying the Wittig reagents (5a, b) on the …
d) have been studied in considerable detail. By applying the Wittig reagents (5a, b) on the …
Reaction of 1-(diphenylmethylene)-2 (1H)-and 4-(diphenylmethylene)-1 (4H)-naphthalenones with tris (dialkylamino) phosphines and ethyldiphenylphosphinite
AA El-kateb, LS Boulos… - Phosphorus, Sulfur, and …, 1993 - Taylor & Francis
Naphthalenone 1 reacts with tris (dialkylamino) phosphines 3 in refluxing benzene to give
the corresponding 1, 2-dihydro-2-dialkylamino-1, 1-diphenylnaphth [1, 2-d-][1, 2] …
the corresponding 1, 2-dihydro-2-dialkylamino-1, 1-diphenylnaphth [1, 2-d-][1, 2] …
The behavior of 5-(4-pyridyl)-2-thiono-1, 3, 4-oxadioazole towards Wittig-Horner reagents
LS Boulos, ESMA Yakout - Phosphorus, Sulfur, and Silicon and the …, 1993 - Taylor & Francis
Abstract Wittig-Horner reagents (2a-c) react with 5-(4-pyridyl)-2-thiono-1, 3, 4-oxadiazole (1)
yielding the new adducts (3a-c). Structural reasoning for compounds 3 was based on …
yielding the new adducts (3a-c). Structural reasoning for compounds 3 was based on …
Studies on phosphonium ylides XX. The behavior of Wittig reagents toward 1, 4‐benzoquinone monoimines
LS Boulos, IT Hennawy… - Heteroatom …, 1994 - Wiley Online Library
Abstract Wittig reagents (1a–c) react with N‐(phenylsulfonyl)‐1, 4‐benzoquinone
monoimine 2a to give adducts 3a, 4a, and 4b. On the other hand, the reactions of 2b with the …
monoimine 2a to give adducts 3a, 4a, and 4b. On the other hand, the reactions of 2b with the …
Scope and mechanism of the reaction of alkylidene phosphoranes with 10-methyleneanthrone
NAF Ganoub, WM Abdou… - Phosphorus, Sulfur, and …, 1993 - Taylor & Francis
Quinone methide (1) reacts with excess carbmethoxymethylenetriphenylphosphorane (2a)
to afford the new product 3a–6 whereas, with carbethoxymethylenetriphenylphosphorane …
to afford the new product 3a–6 whereas, with carbethoxymethylenetriphenylphosphorane …