Iridium(III)-Catalyzed C−H Functionalization of Triarylphosphine Oxides with Diazo Dicarbonyl Compounds: Synthesis of α-Aryl 1,3-Dicarbonyl Derivatives
作者:Shang-Dong Yang、Qin-Xin Lou、Jing-Yu Li
DOI:10.1055/a-1409-1906
日期:2021.8
A novel (pentamethylcyclopenta-1,3-dienyl)iridium(III)-catalyzed direct C–H functionalization of triarylphosphine oxides with diazo dicarbonyl compounds through carbene insertion has been developed. This strategy provides a simple and efficientroute to the construction of α-arylated 1,3-dicarbonyl compounds, which are important building blocks in pharmaceutical chemistry.
Rhodium Carbene Routes to Oxazoles and Thiazoles. Catalyst Effects in the Synthesis of Oxazole and Thiazole Carboxylates, Phosphonates, and Sulfones
作者:Baolu Shi、Alexander J. Blake、William Lewis、Ian B. Campbell、Brian D. Judkins、Christopher J. Moody
DOI:10.1021/jo902256r
日期:2010.1.1
Dirhodium tetraacetate catalyzed reaction of α-diazo-β-keto-carboxylates and -phosphonates with arenecarboxamides gives 2-aryloxazole-4-carboxylates and 4-phosphonates by carbene N−H insertion and cyclodehydration. In stark contrast, dirhodium tetrakis(heptafluorobutyramide) catalysis results in a dramatic change of regioselectivity to give oxazole-5-carboxylates and 5-phosphonates. α-Diazo-β-ketosulfones
A Novel Route to 3‐(O,O‐Diethylphosphoryl)‐2,3‐dihydrofurans via Rhodium‐Catalyzed Heterocycloaddition Reaction
作者:Denghuang Gong、Ling Zhang、Chengye Yuan
DOI:10.1081/scc-200030537
日期:2004.1.1
Abstract A series of 3‐phosphoryl‐2,3‐dihydrofurans are efficiently synthesized by the reaction of diethyl 1‐diazo‐2‐oxo‐alkylphosphonates with alkyl vinylethers in good yields. 2,3‐Dihydrofurans bearing phosphoryl and trifluoromethyl moieties are also prepared in a similar manner. #Studies on Organophosphorus Compounds, Part 132. For Part 131, see D. Gong, L. Zhang and C. Yuan, Synthetic Commun.
摘要 1-重氮-2-氧代-烷基膦酸二乙酯与烷基乙烯基醚以良好的收率反应合成了一系列3-磷酰基-2,3-二氢呋喃。带有磷酰基和三氟甲基部分的 2,3-二氢呋喃也以类似的方式制备。#有机磷化合物研究,第 132 部分。对于第 131 部分,请参见 D. Gong、L. Zhang 和 C. Yuan,Synthetic Commun。2004, 34 (18).
Efficient Solid/Liquid Phase-Transfer Catalytic Diazo Transfer Synthesis
作者:Zsuzsa M. Jászay、Truong Son Pham、Katalin Gönczi、Imre Petneházy、László Tőke
DOI:10.1080/00397910903100742
日期:2010.5.11
A simple and efficient solid/liquid phase-transfer catalytic diazotransferreaction for the synthesis of diazocarbonyl, diazophosphonyl, and diazophosphinyl compounds is reported.
报道了一种用于合成重氮羰基、重氮膦酰基和重氮膦基化合物的简单有效的固/液相转移催化重氮转移反应。
A Facile Synthesis of 4‐(O,O‐Dialkylphosphoryl)‐1,3‐oxazole by Rhodium‐Catalyzed Heterocycloaddition
作者:Denghuang Gong、Ling Zhang、Chengye Yuan
DOI:10.1081/scc-200030540
日期:2004.1.1
Abstract A series of 4‐phosphoryl substituted 1,3‐oxazole are prepared conveniently by reaction of diethyl 1‐diazo‐2‐oxo‐alkylphosphonates and aromatic nitriles in the presence of a catalytic amount of rhodium(II) acetate. #Studies on Organophosphorus Compounds, Part 131. For Part 130, see C. Xu and C. Yuan, Tetrahedron 2004, 60, 3883–389.
摘要 通过 1-重氮-2-氧代-烷基膦酸二乙酯和芳香腈在催化量的乙酸铑(II)存在下反应,可以方便地制备一系列 4-磷酰基取代的 1,3-恶唑。#有机磷化合物研究,第 131 部分。对于第 130 部分,请参见 C. Xu 和 C. Yuan,Tetrahedron 2004, 60, 3883–389。