Cyclopentenones from Allylidene Triphenylphosphoranes and α-Halocarbonyl compounds

Hatanaka, Minoru; Himeda, Yuichiro; Ueda, I.

doi:10.1016/0040-4039(91)80029-6

Search citation statements

Order By: Relevance

Paper Sections

Select...

Synthesis2

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1992

2018

Publication Types

Select...

Other4

Article3

Relationship

Self Cite0

Independent7

Authors

Journals

Cited by 15 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanism is supported by earlier work of the authors. 84 The reaction of 88a with a-bromoacetophenone (107a: R 1 = Ph, R 2 = H) afforded cyclopentadiene 108a. In addition, an increased amount of intermediate B was isolated.…”

Section: Synthesismentioning

confidence: 99%

One-Pot Cyclizations of (2,4-Dioxobutylidene)phosphoranes and (2-Alkoxy-4-oxobut-2-enylidene)phosphoranes

Feist¹,

Langer²

2008

Synthesis

View full text Add to dashboard Cite

show abstract

Section: Synthesismentioning

confidence: 99%

One-Pot Cyclizations of (2,4-Dioxobutylidene)phosphoranes and (2-Alkoxy-4-oxobut-2-enylidene)phosphoranes

Feist¹,

Langer²

2008

Synthesis

View full text Add to dashboard Cite

show abstract

“…5-(1-Naphthylmethyl)-3-phenylcyclopent-2-enone (4).-To a solution of 1-(chloromethyl)naphthalene (1.77 g, 10 mmol) was added 1,8-diazabicylo [5.4.0]undec-7-ene (1.68 g; 11 mmol) and the enone ester 6 8, 29 (2.20 g, 10.2 mmol) in dry xylene (10 cm 3 ). The mixture was stirred for 16 h at room temperature.…”

Section: Synthesismentioning

confidence: 99%

Photochemistry of substituted cyclic enones. Part 11.1 Synthesis and photophysics of 5-arylalkyl-3-phenylcyclopentenones

Kelly¹,

Doyle²,

Guha³

et al. 1998

J. Chem. Soc., Perkin Trans. 2

View full text Add to dashboard Cite

The photophysical properties of 3-phenyl-5-[2-(1-naphthyl)ethyl]cyclopent-2-enone and 5-[2-(1-naphthyl)methyl]-3-phenylcyclopent-2-enone have been compared with those of their constituent alkylated chromophores 1-ethylnaphthalene, 3-phenyl-5-(2-phenylethyl)cyclopent-2-enone and 3-phenyl-5-benzylcyclopent-2-enone by means of UV absorption spectroscopy, steady state and time resolved low temperature emission spectroscopy and laser flash photolysis. In mixed solvent low temperature glasses such as ethanol-isopentane-diethyl ether (2 : 5 : 5, v/v) (EPA) phosphorescence decay of all the enones shows multiexponential behaviour consistent with different lifetimes at different solvent sites. The naphthalene derivatives also show a longer lived emission consistent with slow processes involving a naphthalene localised triplet excited state. By contrast in fluid solution flash photolysis experiments reveal that there is rapid equilibration between the enone-and naphthalene-localised states.

show abstract

Preparation of Difunctional Compounds

1995

Compendium of Organic Synthetic Methods

View full text Add to dashboard Cite

Cyclopentenones from Allylidene Triphenylphosphoranes and α-Halocarbonyl compounds

Cited by 15 publications

References 19 publications

One-Pot Cyclizations of (2,4-Dioxobutylidene)phosphoranes and (2-Alkoxy-4-oxobut-2-enylidene)phosphoranes

One-Pot Cyclizations of (2,4-Dioxobutylidene)phosphoranes and (2-Alkoxy-4-oxobut-2-enylidene)phosphoranes

Photochemistry of substituted cyclic enones. Part 11.1 Synthesis and photophysics of 5-arylalkyl-3-phenylcyclopentenones

Preparation of Difunctional Compounds

Contact Info

Product

Resources

About