95-13-6Relevant articles and documents
Spontaneous resolution versus formation of racemic crystals of indenylpotassium complexes
Olsson, Susanne,Lennartson, Anders,Hakansson, Mikael
, p. 131 - 135 (2013)
During a study of stereochemically labile organometallic reagents, we found that crystallisation of [K(ind)(pmdta)]n (ind = indenyl, pmdta = N,N,N',N'',N''-pentamethyldiethylenetriamine) from tetrahydrofuran (THF) gave rise to three different crystalline phases depending on the concentration. The more concentrated solutions gave racemic crystals of the previously known coordination polymer [K(ind)(pmdta)]n, a-1. More dilute solutions gave crystals of a new phase, b-1, which was found to undergo spontaneous resolution. From even more dilute solutions, we were able to isolate a chiral inclusion compound with THF, 2, which also undergoes spontaneous resolution. Crystals of b-1 and 2 were enantiomerically pure, and since b-1 is a reactive organometallic reagent, attempts were made to use the crystals in enantioselective synthesis. Reacting single crystals with N-chlorosuccinimide gave rise to chiral 1-chloroindene, but no enantiomeric excess was observed.
INDENODIAZETINE: PREPARATION AND THERMAL DIAZETATION
Pincock, J. A.,Druet, Linda M.
, p. 3251 - 3252 (1980)
The preparation of an aryl substitued diazetine and the kinetics for its thermal decomposition to nitrogen and alkene are reported.
Mehrfachbindungen zwischen Hauptgruppenelementen und Uebergangsmetallen. CXLIII. Indenyltrioxorhenium(VII): Organometalloxid mit dynamischer Struktur
Herrmann, Wolfgang A.,Kuehn, Fritz E.,Romao, Carlos C.
, p. C56 - C59 (1995)
Indenyltrioxorhenium(VII), (C9H7)ReO3, was synthesized from Re2O7 and (indenyl)tris(n-butyl)tin.It is a moisture- and temperature-sensitive compound (dec. -30 deg C), the structure of which adopts η1-coordination of the organic ligand.According to 1H NMR studies, a haptotropic structural rearrangement occurs at > -25 deg C in solution (1,3-shift mechanism).Decomposition studies show a concentration decay of the title compound in anhydrous solution, with formation of ReO3 and indene.Keywords: Rhenium; Indenyl; Dynamic structure; NMR
Mild and efficient desulfurization of thiiranes with MoCl5/Zn system
Lee, Yeong Jin,Shin, Jeong Won,Yoo, Byung Woo
, (2021/11/10)
Desulfurization of a variety of thiiranes to alkenes occurs chemoselectively in high yields upon treatment with MoCl5/Zn system under mild conditions. The new methodology demonstrates high functional group tolerance toward chloro, bromo, fluoro, methoxy, ester, ether and keto groups.
INDENE COMPOSITION
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Paragraph 0107-0109, (2022/01/08)
The present invention provides an indene composition having a content of indene of 80 to 99.5% by mass, in which a content ratio of a hydrocarbon compound having a condensed ring structure of a 5-membered ring and a 6-membered ring, and having 9 or 10 carbon atoms, in a component contained in addition to indene, is 90% by mass or more, and a content of benzonitrile is 0.5% by mass or less, and a content of sulfur is 5 ppm by mass or less.