Pt(II)/SnX2 (X = Cl, Br)-Catalyzed Cyclization: Completely Different Reactivity of the Platinum Complex toward 1,6-Haloenynes and 1,6-Enynes

Jang MS; Wang X; Jang WY; Jang HY

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Pt(II)/SnX2 (X = Cl, Br)-Catalyzed Cyclization: Completely Different Reactivity of the Platinum Complex toward 1,6-Haloenynes and 1,6-Enynes

机译：Pt（II）/ SnX2（X = Cl，Br）催化的环化：铂络合物对1,6-卤代炔和1,6-炔烃的完全不同的反应性

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Using a Pt catalyst generated from PtX2, SnX2, Phosphines, and H-2, the cyclizations of haloenynes and enynes without a halide substituent were investigated. Under the Pt catalyst conditions, the reaction routes were partitioned into the cycloisomerization of the haloenynes and the cycloreduction of the enynes without a halogen substituent. Through the optimization of the reaction conditions and control experiments, we proposed plausible catalytic cycles to account for the bifurcation of the reaction mechanisms in addition to the demonstration of the substrate scope of the cycloisomerization of the haloenynes.

机译：使用由PtX2，SnX2，Phosphines和H-2生成的Pt催化剂，研究了没有卤化物取代基的卤代炔和烯炔的环化。在Pt催化剂条件下，将反应路线分配为卤代炔的环异构化和没有卤素取代基的烯炔的环还原。通过优化反应条件和控制实验，我们提出了合理的催化循环，以说明反应机理的分叉，并证明了卤代酮的环异构化的底物范围。

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《Organometallics》 |2009年第16期|共4页
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Jang MS; Wang X; Jang WY; Jang HY;
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1. Pt(II)/SnX2 (X = Cl, Br)-Catalyzed Cyclization: Completely Different Reactivity of the Platinum Complex toward 1,6-Haloenynes and 1,6-Enynes [J] . Jang MS, Wang X, Jang WY, Organometallics . 2009,第16期

机译：Pt（II）/ SnX2（X = Cl，Br）催化的环化：铂络合物对1,6-卤代炔和1,6-炔烃的完全不同的反应性
2. Rhodium‐Catalyzed Cascade Radical Cyclization of 1,6‐Enynes with Br?CX3 : Access to Bromine‐Containing Trihalomethylated Pyrrolidines [J] . Zhang Yingying, Chen Chen, Zhao Jinghui, Asian Journal of Organic Chemistry . 2019,第12期

机译：铑催化的级联1,6-烯醇的级联，BRαCX3：获得含溴三卤代甲基化吡咯烷
3. Gold(I)-catalyzed divergence in the reactivity of 3-silyloxy 1,6-enynes: Pinacol-terminated vs claisen-terminated cyclization cascades [J] . Baskar B, Bae HJ, An SE, Organic letters . 2008,第12期

机译：金（I）催化3-甲硅烷氧基1,6-炔烃的反应性发散：频哪醇终止与克莱森终止的环化级联反应
4. Cationic Palladium Complex-Catalyzed Cyclization-Hydrosilylation of 1,6-Heptadiyne and Its Homologs [C] . Keyi Yamamoto, Yoshiya Sonoda, Shigeru Wakayanagi Symposium on Organometallic Chemistry . 2003

机译：阳离子钯复合催化的环化 - 氢硅烷化为1,6-庚绒及其同源物
5. Enantioselective palladium(II) catalyzed 1,6-enyne cyclizations: Methodology development and application to total synthesis [D] . Corkey, Britton Kenneth 2008

机译：对映选择性钯（II）催化1，6-烯炔环化：方法学的发展和在全合成中的应用
6. Gold(i)-catalyzed stereoselective cyclization of 13-enyne aldehydes by a 13-acyloxy migration/Nazarov cyclization/aldol addition cascade [O] . Marco Brandstätter, Nikolas Huwyler, Erick M. Carreira 2019

机译：通过13-酰氧基迁移/纳扎罗夫环化/醛醇加成级联反应的金（i）催化的13-烯炔醛的立体选择性环化
7. A Study Of Iron-Catalyzed Reductive Cyclizations Of 1,6- Dienes, 1,6-Enynes, 1,6-Diynes: Reactions That Proceed Via Metallocyclic Intermediates. [O] . Sylvester Kevin 2011

机译：铁催化的1,6-二烯，1,6-烯，1,6-二炔的铁催化还原环化研究：通过金属环中间体进行的反应。

Pt(II)/SnX2 (X = Cl, Br)-Catalyzed Cyclization: Completely Different Reactivity of the Platinum Complex toward 1,6-Haloenynes and 1,6-Enynes

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