Synergistic Brønsted/Lewis acid catalyzed aromatic alkylation with unactivated tertiary alcohols or di-<i>tert</i>-butylperoxide to synthesize quaternary carbon centers
作者:Aaron Pan、Maja Chojnacka、Robert Crowley、Lucas Göttemann、Brandon E. Haines、Kevin G. M. Kou
DOI:10.1039/d1sc06422c
日期:——
Dual Brønsted/Lewis acid catalysis involving environmentally benign, readily accessible protic acid and iron promotes site-selective tert-butylation of electron-rich arenes using di-tert-butylperoxide. This transformation inspired the development of a synergistic Brønsted/Lewis acidcatalyzed aromatic alkylation that fills a gap in the Friedel–Crafts reaction literature by employing unactivated tertiary
SPIRO-BISPHOSPHOROUS COMPOUND, AND PREPARATION AND APPLICATION THEREOF
申请人:Guangdong OXO Chem Ltd.
公开号:US20220242891A1
公开(公告)日:2022-08-04
Disclosed are a spiro-bisphosphorous compound, and a preparation and application thereof. The spiro-bisphosphorous compound is expressed in formula (I), (II) or (III).
A polymerizable composition which comprises (i) a cycloolefin monomer, (ii) a metathesis polymerization catalyst, (iii) a chain transfer agent, (iv) a radical crosslinking agent, and (v) a compound (α) selected from the group consisting of compounds having alkoxyphenol structures wherein each aromatic ring has one or more substituents, compounds having aryloxyphenol structures, and compounds having catechol structures wherein each aromatic ring has two or more substituents; a thermoplastic resin composition which comprises (1) a cycloolefin thermoplastic resin, (2) a radical crosslinking agent, and (3) a compound (α) ; a process for the production thereof; a crosslinked resin obtained by crosslinking the thermoplastic resin composition; and crosslinked resin composite materials produced by laminating a substrate with the thermoplastic resin composition and crosslinking the thermoplastic resin composition. The invention provides a polymerizable composition useful as raw material in the production of a thermoplastic resin composition excellent in storage stability and fluidity in heat lamination; a thermoplastic resin composition and a process for the production thereof; a crosslinked resin obtained by crosslinking the thermoplastic resin composition; and crosslinked resin composite materials exhibiting excellent interlayer adhesion.