25423-58-9Relevant academic research and scientific papers
Catalytic cyclooligomerization of thietane by trirhenium cluster complexes. A new route to polythiaether macrocycles
Adams,Falloon
, p. 10540 - 10547 (1994)
In this report, the results of our studies of the title reaction are described. It is demonstrated that these thiaethers also produce ring opening of the bridging thietane ligand, but in the case of thietane a series of ring-opening coupling reactions occurs that is concluded by cyclization processes that yield polythiaether macrocycles. Indeed, the ring-opening cyclization can be performed catalytically under suitable conditions to yield the macrocycles in a free state in substantial amounts.
Sulfide ion transfer from a vicinal dithiolate. A new route for the synthesis of mesocyclic trithiaethers
Qu, Wenchao,Rorabacher, David B.,Taschner, Michael J.
, p. 8057 - 8060 (2007/10/03)
Four mesocyclic and one macrocyclic trithiaethers have been synthesized using a sulfide ion transfer from a vicinal dithiolate. The mechanism of the sulfide ion transfer is discussed. An improved method for synthesizing 2-hydroxymethyl-1,4,8,11-tetrathiacyclotetradecane is also reported.
The catalytic ring-opening cyclooligoraerization (ROC) of by the complexes M(CO)5L (M = Cr and W; L = CO, and 1,5,9-trithiacyclododecane)
Adams, Richard D.,Falloon, Stephen B.,Perrin, Joseph L.,Qoeisser, Joachim A.,Yamamoto, John H.
, p. 313 - 318 (2007/10/02)
The following four compounds have been synthesized: M(CO)5L (3 and 4, where M= Cr and W, and L = SCH2CH2CH2), W(CO)5(12S3) (5, where 12S3 = 1,5,9-trithiacyclododecane), and [W(CO)5]2(12S3) (6). The molecular structures of 4 and 5 were established by single-crystal X-ray diffraction analyses. Both compounds contain a W(CO)5 group coordinated to one of the sulfur atoms of the heterocycle. The ability of the compounds M(CO)6, 1 and 2 (M= Cr and W), and 3-5 to catalytically produce ring opening cyclooligomerization JROC) of thietane into 12S3 and 24S6, (2486= 1,5,9,13,17,21-hexathiacyclotetracosane) has been investigated. Compounds 1-3 have relatively low activity. Compounds 4 and 5 have the highest activity and selectivity for 12S3 formation. Crystal Data for 4: space group = P212121, a = 12.906(2) A, b = 13.730(4) A, c = 6.427(1) A, Z = 4, 1306 reflections, R - 0.033; for 5: space group = P1, a = 12.703(1) A, b = 13.510(2) A, c = 5.833(1) A, α = 101.75(1)°, β = 97.54(1)°, γ = 101.70(1)°, Z = 2, 2225 reflections, R = 0.023. VCH Verlagsgesellschaft mbH. 1996.
Crown Thioether Chemistry. Synthesis and Structural Investigation of 1,5,9-Trithiacyclododecane (Trithia-12-crown-3) and its Copper(II) Chloride Adduct
Rawle, Simon C.,Admans, Gary A.,Cooper, Stephen R.
, p. 93 - 96 (2007/10/02)
1,5,9-Trithiacyclododecane (L1) (trithia-12-crown-3) adopts a square conformation similar to that of cyclododecane, with one sulphur atom at a corner and two in side positions.Reaction with copper(II) chloride yields an adduct, 1)2Cl2>, that has been characterized by X-ray diffraction.Each copper ion occupies a centre of inversion and has idealized octahedral microsymmetry, with thioether groups at distances of 2.447(1) and 3.050(1) Angstroem.The conformation adopted by the macrocycle is virtually identical to that adopted by the free ligand, which suggests that its conformation is determined by intrinsic factors rather than packing forces.
Octahedral nickel(II) complexes of some cyclic polyfunctional thioethers
Rosen, William,Busch, Daryle H.
, p. 262 - 265 (2007/10/05)
Three new macrocyclic ligands having only thioether donors have been synthesized. The nickel(II) tetrafluoroborate complexes have been prepared and characterized. All the complexes contain octahedral nickel(II) as the central metal ion and the physical pr
