82895-28-1Relevant academic research and scientific papers
Crossing the Boundaries between Marine and Muguet: Discovery of Unusual Lily-of-the-Valley Odorants Devoid of Aldehyde Functions
Jordi, Samuel,Kraft, Philip
, (2018/06/04)
Since 6-isopropyl- (11) and 6-isobutyl-2H-benzo[b][1,4]dioxepin-3(4H)-one (12) instead of the expected marine odor had been reported to possess lily-of-the-valley notes, albeit weaker than benchmark odorants, the influence of a cyclopropyl ring instead of
Microwave synthesis of secondary phosphines and phosphine oxides from red phosphorus and allyl(methoxy)benzenes in KOH-DMSO
Kuimov,Malysheva,Artem'Ev,Kenzhetaeva,Belogorlova,Komarova,Gusarova,Trofimov
, p. 1438 - 1442 (2015/02/19)
Bis[1-(methoxyphenyl)propan-2-yl]phosphines and bis[1-(methoxyphenyl)propan-2-yl]phosphine oxides were synthesized by phosphorylation of allyl(methoxy)benzenes in the system red phosphorus-KOH · 0.5 H2O-DMSO under microwave irradiation.
Synthesis and properties of bimetallic Hoveyda-Grubbs metathesis catalysts
Grudzien, Krzysztof,Malinska, Maura,Barbasiewicz, Michal
, p. 3636 - 3646 (2012/07/13)
The catalytic activity of ruthenium Hoveyda-Grubbs complexes in olefin metathesis is a function of complex steric and electronic effects acting on initiation and propagation steps. In order to study the π-electron factors influencing the initiation process, we attempted syntheses of bimetallic complexes with common organic ligands bearing two chelate rings. While most of the studied ligand exchange reactions of the isomeric bis-chelating benzene derivatives gave mixtures of unstable complexes, a homodinuclear derivative of 1,4-dimethoxy-2,5-divinylbenzene was sparingly soluble and precipitated from the reaction mixture in a pure form. The complex was studied with spectroscopic and X-ray methods, which confirmed the symmetrical bimetallic structure. However, in model metathesis reactions the catalyst displayed activity very comparable to the related monometallic complexes. This suggests that in the bimetallic system two consecutive initiation processes of the metathesis catalyst (first, bimetallic complex + olefin → monometallic complex + propagating species; second, monometallic complex + olefin → styrene + propagating species) proceed at similar rates and, thus, no cooperativity between the two steps is displayed. Properties of the family of bimetallic complexes were probed with NMR studies, and π-electronic effects operating in the systems were discussed.
Synthesis of [2-(methoxyaryl)-1-methylethyl]phosphinic acids from red phosphorus and (allyl)(methoxy)benzenes
Malysheva,Kuimov,Artem'Ev,Belogorlova,Albanov,Gusarova,Trofimov
, p. 1787 - 1791 (2013/11/19)
(Allyl)(methoxy)benzenes react with red phosphorus in the superbasic system KOH-DMSO in the presence of small amounts of water and hydroquinone (3 h, 130 C) to regio- and chemoselectively give [2-(methoxyaryl)-1-methylethyl]phosphinic acids in preparative yields up to 52%. The reactions involve isomerization of allylbenzenes into (prop-1-enyl)benzenes.
REACTION OF o-BENZOQUINONE BISACETALS WITH ORGANOLITHIUMS. A NOVEL ROUTE TO SUBSTITUTED VERATROLES
Kikuchi, Yoshiyuki,Hasegawa, Yoko,Matsumoto, Masakatsu
, p. 2199 - 2202 (2007/10/02)
Substituted veratroles were easily obtained by the reaction of o-benzquinone bisacetals with organolithiums.
