Ambient Temperature Hydrophosphination of Internal, Unactivated Alkynes and Allenyl Phosphineoxides with Phosphine Borane Complexes
摘要:
Phosphine boranes have been found to hydrophosphinate internal, unactivated alkynes at room temperature under basic conditions without the need for catalysts or radical initiators, The use of air-sensitive secondary phosphines is avoided in this facile process. Broad scope in both the phosphine borane and alkyne partners leads to excellent diversity in the phosphine products. Asymmetric hydrogenation of these species then provides one of the shortest possible routes to chiral monodentate phosphines, Hydrophosphination of allenyl phosphine oxides under similar conditions followed by hydrogenation of the exomethylene moiety yields a wide variety of bis-phosphine derivatives.
Ambient Temperature Hydrophosphination of Internal, Unactivated Alkynes and Allenyl Phosphineoxides with Phosphine Borane Complexes
摘要:
Phosphine boranes have been found to hydrophosphinate internal, unactivated alkynes at room temperature under basic conditions without the need for catalysts or radical initiators, The use of air-sensitive secondary phosphines is avoided in this facile process. Broad scope in both the phosphine borane and alkyne partners leads to excellent diversity in the phosphine products. Asymmetric hydrogenation of these species then provides one of the shortest possible routes to chiral monodentate phosphines, Hydrophosphination of allenyl phosphine oxides under similar conditions followed by hydrogenation of the exomethylene moiety yields a wide variety of bis-phosphine derivatives.
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
本发明涉及使用催化剂体系将烯烃(如乙烯)低聚为高碳烯烃(如 1-己烯和 1-辛烯的混合物),该催化剂体系包括 a) 铬源 b) 一种或多种活化剂和 c) 含磷环连接化合物。此外,本发明还涉及一种含磷环的连接化合物和制造所述化合物的工艺。
Phosphacycle compound and process for production thereof
申请人:Dow Global Technologies LLC
公开号:US10357764B2
公开(公告)日:2019-07-23
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
本发明涉及使用催化剂体系将烯烃(如乙烯)低聚为高碳烯烃(如 1-己烯和 1-辛烯的混合物),该催化剂体系包括 a) 铬源 b) 一种或多种活化剂和 c) 含磷环连接化合物。此外,本发明还涉及一种含磷环的连接化合物和制造所述化合物的工艺。
Process for oligomerization
申请人:Dow Global Technologies LLC
公开号:US10376869B2
公开(公告)日:2019-08-13
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
本发明涉及使用催化剂体系将烯烃(如乙烯)低聚为高碳烯烃(如 1-己烯和 1-辛烯的混合物),该催化剂体系包括 a) 铬源 b) 一种或多种活化剂和 c) 含磷环连接化合物。此外,本发明还涉及一种含磷环的连接化合物和制造所述化合物的工艺。
CHROMIUM COMPLEX AND CATALYST THEREFROM
申请人:Dow Global Technologies LLC
公开号:US20180071725A1
公开(公告)日:2018-03-15
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
PROCESS FOR OLIGOMERIZATION
申请人:Dow Global Technologies LLC
公开号:US20180154344A1
公开(公告)日:2018-06-07
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.