2209-91-8Relevant academic research and scientific papers
A compound, said compound and catalyst solid catalyst component
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Paragraph 0062; 0063, (2018/02/04)
The invention discloses a compound with a novel structure. The structure of the compound is represented by formula (I); and in the formula (I), R1 to R4 can be same to or different from each other and are independently selected from substituted or non-substituted C1-C20 alkyl groups, and preferably substituted or non-substituted C1-C10 aliphatic groups, C3-C10 cycloalkyl groups, C6-C20 aryl groups and C7-C20 alkaryl groups, and R3 and R4 can be optionally connected to form a ring. The compound represented by formula (I) can be used as an internal electron donor compound to obtain a catalyst with excellent comprehensive performances. The catalyst can be used in olefin polymerization, especially propylene polymerization to obtain a satisfactory polymerization yield, has good hydrogen sensitivity and high stereospecificity, and is in favor of developing different types of polymers.
AB3 building blocks for the synthesis of polyester dendrimers
Twibanire, Jean-D'Amour K.,Huestis, Malcolm P.,Grindley, T. Bruce
, p. 3436 - 3439 (2014/06/09)
Syntheses of several examples of a new type of trivalent building blocks for the preparation of aliphatic polyester dendrimers are presented. Starting from the well-known mono-O-benzylidenepentaerythritol, AB3 type acid dendrons can be obtained
Synthesis of achiral α,α-disubstituted β-alanines, and their use in construction of libraries of β-peptide conjugates of N-2-alkyl-1,2,3,4- tetrahydroisoquinolines on a solid support
Heinonen, Petri,Virta, Pasi,Loennberg, Harri
, p. 7613 - 7624 (2007/10/03)
Six achiral N-phthaloyl protected α,α-disubstituted β-amino acids were synthesized, and used to construct a 96 compound library of 1,2,3,4- tetrahydroisoquinoline conjugates of β-peptides on a solid support. The library synthesis consisted of attachment of an appropriately 5-O-tethered 1,2,3,4-tetrahydroisoquinoline via the N-2 atom to a vinyl sulfonyl support, elongation of the deprotected 5-O-tether by repeated peptide coupling, quaternarization of N-2 with alkylamines and release of the β-peptide conjugate into solution with triethylamine.
SYNTHESIS OF 5,5-BIS(ALKOXYMETHYL)-1,3-DIOXANES
Kireev, I. R.,Kantor, E. A.,Valitov, R. B.,Rakhmankulov, D. L.
, p. 1366 - 1368 (2007/10/02)
5,5-Bis(alkoxymethyl)-1,3-dioxanes were synthesized from 3,3-bis(chloromethyl)oxacyclobutane.Of the two possible versions, differing in the order of the stages, the production of 3,3-bis(alkoxymethyl)oxacyclobutane and its subsequent condensation with the
