Easily Prepared Mono(N,N‐dialkylamino)phosphine Palladium(II) Complexes: Structural and Catalytic Evaluation
作者:Jairus L. Lamola、Joy C. Shilubana、Lonwabo Ngodwana、Banele Vatsha、Adedapo S. Adeyinka、Munaka C. Maumela、Cedric W. Holzapfel、Edwin M. Mmutlane
DOI:10.1002/ejic.202100232
日期:2021.7.15
The search for efficient, active and universal catalyst systems for transition-metal catalyzed cross-coupling reactions, continues to be of interest to researchers world-wide. Herein, we report two new Pd(II) complexes, effortlessly prepared from N,N-dialkylamino-phosphines for Suzuki-Miyaura cross-coupling reactions. These sufficiently hindered (% VBur=30.0–31.5 %) and electron rich (vCO=1947.41–1946
为过渡金属催化的交叉偶联反应寻找高效、活性和通用的催化剂体系一直是全世界研究人员的兴趣所在。在此,我们报告了两种新的 Pd(II) 配合物,它们由N,N-二烷基氨基膦轻松制备,用于 Suzuki-Miyaura 交叉偶联反应。这些充分受阻(% V Bur = 30.0–31.5 %)和富电子(v CO =1947.41–1946.29 cm -1)的氨基膦形成了芳基溴化物和氯化物的 Suzuki-Miyaura 偶联的活性催化剂。
FLAME-RETARDANT RESIN COMPOSITION
申请人:Polyplastics Co., Ltd.
公开号:EP1466946A1
公开(公告)日:2004-10-13
A flame-retardant resin composition comprises a thermoplastic resin; a flame retardant comprising a phosphorus-containing compound (A), a aromatic resin (B), and at least one flame-retardant auxiliary (C) selected from a nitrogen-containing compound and a metal salt of an inorganic acid; and at least one stabilizer auxiliary (D) selected from a compound having a functional group reactive to an active hydrogen atom and a water-repellent compound. The phosphorus-containing compound may be a phosphoric ester. The aromatic resin may be a polyphenylene sulfide-series resin or a polyphenylene oxide-series resin. The nitrogen-containing compound is a salt of an amino group-containing triazine compound with an oxygen acid, a salt of an amino group-containing triazine compound with a hydroxyl group-containing triazine compound, a polyphosphoric acid amide, a cyclic urea compound, or others. The present invention provides a flame-retardant resin composition which has been flame-retarded without using a halogen-containing flame retardant.
A flame-retardant resin composition comprises a thermoplastic resin; a flame retardant comprising a phosphorus-containing compound (A), a aromatic resin (B), and at least one flame-retardant auxiliary (C) selected from a nitrogen-containing compound and a metal salt of an inorganic acid; and at least one stabilizer auxiliary (D) selected from a compound having a functional group reactive to an active hydrogen atom and a water-repellent compound. The phosphorus-containing compound may be a phosphoric ester. The aromatic resin may be a polyphenylene sulfide-series resin or a polyphenylene oxide-series resin. The nitrogen-containing compound is a salt of an amino group-containing triazine compound with an oxygen acid, a salt of an amino group-containing triazine compound with a hydroxyl group-containing triazine compound, a polyphosphoric acid amide, a cyclic urea compound, or others. The present invention provides a flame-retardant resin composition which has been flame-retarded without using a halogen-containing flame retardant.