56252-55-2Relevant articles and documents
Selective Separation of Structurally or Electronically Similar Ethers with MAD
Maruoka, Keiji,Nagahara, Sigeru,Yamamoto, Hisashi
, p. 3354 - 3355 (1990)
Selective separation of the less hindered or electronically more labile of two different ethers has been accomplished with exceptionally bulky, Lewis acidic MAD by the yield of precipitates as selective Lewis acid-base complexes.
Phenoxide and alkoxide complexes of Mg, Al and Zn, and their use for the ring-opening polymerization of ?-caprolactone with initiators of different natures
Minyaev, Mikhail E.,Nifant'ev, Ilya E.,Shlyakhtin, Andrey V.,Ivchenko, Pavel V.,Lyssenko, Konstantin A.
, p. 548 - 557 (2018)
A new packing polymorph of bis(2,6-di-tert-butyl-4-methylphenolato-κO)bis(tetrahydrofuran-κO)magnesium, [Mg(C15H23O)2(C4H8O)2] or Mg(BHT)2(THF)2, (BHT is the 2,6-di-tert-butyl-4-methylphenoxide anion and THF is tetrahydrofuran), (1), has the same space group (P21) as the previously reported modification [Nifant'ev et al. (2017d). Dalton Trans.46, 12132–12146], but contains three crystallographically independent molecules instead of one. The structure of (1) exhibits rotational disorder of the tert-butyl groups and positional disorder of a THF ligand. The complex of bis(2,6-di-tert-butyl-4-methylphenolato-κO)bis(μ2-ethyl glycolato-κ2O,O′:κO)dimethyldialuminium, [Al2(CH3)2(C4H7O3)2(C15H23O)2] or [(BHT)AlMe(OCH2COOEt)]2, (2), is a dimer located on an inversion centre and has an Al2O2 rhomboid core. The 2-ethoxy-2-oxoethanolate ligand (OCH2COOEt) displays a μ2-κ2O,O′:κO semi-bridging coordination mode, forming a five-membered heteronuclear Al–O–C–C–O ring. The same ligand exhibits positional disorder of the terminal methyl group. The redetermined structure of the heptanuclear complex octakis(μ3-benzyloxo-κO:κO:κO)hexaethylheptazinc, [Zn7(C2H5)6(C7H7O)8] or [Zn7(OCH2Ph)8Et6], (3), possesses a bicubic Zn7O8 core located at an inversion centre and demonstrates positional disorder of one crystallographically independent phenyl group. Cambridge Structural Database surveys are given for complexes structurally analogous to (2) and (3). Complexes (2) and (3), as well as derivatives of (1), are of interest as catalysts for the ring-opening polymerization of ?-caprolactone, and polymerization results are reported.
C7 SUBSTITUTED OXYSTEROLS AND METHODS AS NMDA MODULATORS
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Paragraph 00387, (2018/04/17)
Compounds are provided according to Formula (A): and pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof; wherein R1A, R1B, n, R2A, R2B, R3, and R4 are as def
NEUROACTIVE STEROIDS AND METHODS OF USE THEREOF
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Paragraph 00171, (2014/10/15)
3beta, 17beta disubstituted steroidal compounds, pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof, are provided for the prevention and treatment of a variety of CNS-related conditions.