Beiträge zur chemie des iodpentafluorids Teil V. IF5 als oxidatives fluorierungsmittel für elementorganika des arsens, antimons und bismuts: selektivität und methodische grenzen
摘要:
DOI:
10.1016/s0022-1139(00)81932-6
作为产物:
描述:
alkaline earth salt of/the/ methylsulfuric acid 在
三氯化砷 作用下,
以90%的产率得到tris(4-fluorophenyl)arsine
Studies of lambert's reaction: The formation of [Mn2(CO)8(μ-AsR2)2] complexes from tertiary arsines and [Mn2(CO)10] at high temperatures
作者:Henry Ashton、Brídín Brady、A.R. Manning
DOI:10.1016/s0022-328x(00)81030-x
日期:1981.11
or As) are inert, the normal photochemical or thermal reaction of tertiaryphosphines or arsines, L, with [Mn2(CO)10] is CO substitution with the formation of [Mn2(CO)8(L)2] derivatives (I). At elevated temperatures some triarylarsines, R3As, undergo Lambert's reaction with ligand fragmentation to give [Mn2(CO)8(μ-AsR2)2] complexes (II) (R = Ph, p-MeOC6H4, p-FC6H4, or p-CIC6H4) even though, in the absence
虽然非常大体积配体例如(ø -MeC 6 ħ 4)3 E或(μ-C 10 H ^ 7)3 E(E = P或As)是惰性的,正常的光化学或叔膦或胂,L的热反应, [Mn 2(CO)10 ]与[Mn 2(CO)8(L)2 ]衍生物(I)的形成中的CO被取代。在升高的温度下的一些triarylarsines,R 3如,经历Lambert的反应与配体碎片,得到[锰2(CO)8(μ-ASR 2)2即使没有[Mn 2(CO)10 ] R 3 As的情况,也可以使用]配合物(II)(R = Ph,p -MeOC 6 H 4,p -FC 6 H 4或p- CIC 6 H 4)。在相同条件下稳定。(p -Me 2 NC 6 H 4)3- As表现出优异的行为,形成I型产物;通过一些HN(C 6 H 4)2由于失去了非芳基R = PhCH 2,环-C 6 H 11或MeO而得到II型产物的AsR ;和通过pH(α-C
Tertiary arsine ligands for the Stille coupling reaction
that the triphenylarsine ligand can accelerate the reaction rate of Stille coupling. However, other arsine ligands have never been investigated for the Stille coupling reaction so far. In this work, we prepared 13 kinds of C3-symmetrical tertiary arsine ligands and discovered that tri(p-anisyl)arsine is the best ligand for the reaction of tributylvinyltin and p-iodoanisole. The reaction mechanism was