52784-33-5Relevant academic research and scientific papers
Trialkylamine-mediated intramolecular acylation of akenes with carboxylic acid chlorides
Matsuo, Jun-Ichi,Hoshikawa, Takaya,Sasaki, Shun,Ishibashi, Hiroyuki
scheme or table, p. 591 - 592 (2010/08/19)
Trialkylamine-mediated intramolecular cyclization of pent-4-enoyl chlorides was studied. Substitution with a tertiary alkyl group at the 2-position gave cyclopent-2-en-1-ones, while substitution with an aromatic group gave enol esters, which were formed by O-acylation of initially formed 3-chlorocyclopentanones with ketenes.
Mn(III) acetate-mediated regioselective benzylation of various α,β-unsaturated and β-alkoxy-α,β-unsaturated ketones
Tanyeli, Cihangir,?zdemirhan, Devrim
, p. 7311 - 7313 (2007/10/03)
We describe herein the results of manganese(III) acetate mediated α′-benzylation of various α,β-unsaturated and β-alkoxy-α,β-unsaturated ketones in moderate yields.
A Regioselective Synthesis of Cyclopentenones from 4-Thianone
Matsuyama, Haruo,Miyazawa, Yasuyuki,Takei, Yuji,Kobayashi, Michio
, p. 1703 - 1710 (2007/10/02)
Alkyl-substituted 3-cyclopentenones 4 and 5 were prepared in moderate to good yields starting from 4-thianone by the selective alkylation and Ramberg-Baecklund-type reactions.One route starts with 6-alkyl-1,4-dioxa-8-thiaspirodecane 8,8-dioxides (8) and another with 7-alkyl-1,4-dioxa-7-(p-tolylsulfonyl)-8-thiaspirodecane 8,8-dioxides (15), followed by acid-catalyzed cleavage of the 1,3-dioxolane ring of 1,4-dioxaspironon-7-enes 9 and 16 to afford 4 and 5.
REARRANGEMENT OF α-PHENYLSELENENYLKETONES.2
Liotta, Dennis,Saindane, Manohar,Monahan III, Robert,Brothers, David,Fivush, Adam
, p. 1461 - 1468 (2007/10/02)
1,3-rearrangements of phenylselenenylketones which lack steric bulk at the α-carbon can be conveniently achieved by taking advantage of the greater reactivity of sodium enolates relative to their lithium counterparts.
TETRAHYDROTHIOPYRAN-4-ONE. A USEFUL 5 C SYNTHON FOR THE SYNTHESIS OF 3-CYCLOPENTENONES
Matsuyama, Haruo,Miyazawa, Yasuyuki,Takei, Yuji,Kobayashi, Michio
, p. 833 - 836 (2007/10/02)
2-Alkyl-3-cyclopentenones were prepared in moderate yields starting from tetrahydrothiopyran-4-one by the one-pot Ramberg-Baecklung reaction of 6-alkyl-1,4-dioxa-8-thiaspirodecane-8,8-dioxides, followed by acid catalyzed de-dioxolanation.
