20834-61-1Relevant articles and documents
Cubane and step-form structures of dilithium bis(aryloxy)phosphines
Carmichael, Christopher D.,Fryzuk, Michael D.
, p. 800 - 806 (2008)
The lithium complexes RP(3,5-tBu2C6H 2OLi)2(THF)4, where R = Ph or iPr, (R[OPO]Li2)2(THF)4, synthesized by reaction of the 2-bromo-4,6-di-tert-butylphenol with BuLi and the appropriate dichlorophosphine, possess solid state structures composed of lithium oxide tetragons arranged in a step-form or face sharing half-cubane arrangements. Incorporation of excess lithium aryloxide results in the formation of complexes that display an extended step-form structure, [Ph[OPO]Li 2(ArOLi)]2, or a distorted cubane arrangement of tetragons, [iPr[OPO]Li3Cl(ArOLi)](THF)3. The Royal Society of Chemistry.
Supported permethylindenyl titanium catalysts for the synthesis of disentangled ultra-high molecular weight polyethylene (: Dis UHMWPE)
Buffet, Jean-Charles,Collins Rice, Clement G.,O'Hare, Dermot,Turner, Zo? R.
supporting information, p. 8600 - 8603 (2021/09/02)
Novel permethylindenyl-phenoxide (PHENI?) ansa-metallocene titanium complexes have been synthesised and immobilised on inorganic solid supports to afford highly effective catalysts for slurry-phase ethylene polymerisation. When supported on solid polymeth
Phosphasalalen Rare-Earth Complexes for the Polymerization of rac-Lactide and rac-β-Butyrolactone
Liu, Hui,Shi, Xiaochao
, p. 705 - 717 (2021/02/05)
A series of new phosphasalalen pro-ligands, analogues of salalen but with an iminophosphorane replacing the imine functionality, and their corresponding rare-earth alkoxide and siloxide complexes were synthesized. The multinuclear NMR spectra and X-ray diffraction analyses revealed that, for the tert-butoxide and ethoxide complexes, the resulting phosphasalalen rare-earth product was composed of a mononuclear alkoxide and a binuclear complex containing bridged alkoxo and hydroxo groups, while an analogous binuclear complex was isolated as the sole product for the siloxide complex. All the complexes could catalyze the heteroselective ring-opening polymerization (ROP) of rac-lactide (Pr up to 0.77) with high catalytic activities and a controlled polydispersity. Remarkably, the yttrium and lutetium phosphasalalen complexes could also efficiently catalyze the ROP of rac-β-butyrolactone to produce syndiotactic polymers (Pr up to 0.73) while their salalen analogues were inert, revealing the special effects of the iminophosphorane moiety. Detailed end-group analyses and kinetic investigations suggested that the alkoxo-hydroxo-bridged complexes maintained their binuclear structures in the polymerization.
COMPOSITIONS AND METHODS FOR IMMUNE MODULATION AND TREATMENT OF CANCER
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Paragraph 0175, (2020/07/31)
The disclosure relates to rexinoids, including compounds of the Formula (I) and (II) or a pharmaceutically acceptable salt, polymorph, prodrug, solvate or clathrate thereof. These rexinoids are useful for increasing PD-L1 in vivo, for treatment of cancer, and for inhibiting the onset of cancer.