Thermal Reactions of Dibenzyl Disulfide and Dibenzyl Sulfide with Metals: A New Route to trans-Stilbene and Dibenzyl

Dependence of Thermal Stability on Molecular Structure of RAFT/MADIX Agents: A Kinetic and Mechanistic Study

“…Trithiocarbonate 9 may undergo not only similar process as in Scheme but also another possible pathway, e.g., the extrusion of CS 2 to form a dibenzyl sulfur ether intermediate, which will further release H 2 S to form ( E )-stilbene (Scheme ) . This is supported by the evidence of sulfur ether species in GC-MS of 9 (Supporting Information).…”

Organometallic Synthesis, Structure Determination, Shape Evolution, and Formation Mechanism of Hexapod-like Ternary PbSexS1–x Nanostructures with Tunable Compositions

“…Under such period, the remaining S (mainly second S atom in DBDS) will incorporate further for the ternary with reaction time proceedings. 45 As a result, the mole ratio of Se decreases gradually while the one of S increases (Figures 9C,D), and both chalcogens distribute effectively and tend to form homogeneous nanostructures (Table S5) with concentration of Pb keeping almost constant (Figure S15). In addition, enlongated reaction time is favorable for the controlling of thermodynamics that would be available for the growth of the ternary hexapods along ⟨100⟩ directions with fatty and rodlike arms and tips even in the presence of DBA with OA (Figure S12).…”

“…Meanwhile, we note that the decomposition of DBDS is composed of two steps that are the separated releases of two sulfur atoms, and obviously the release temperature of the second S atom is higher than that of the first one in the synthesis in the same reaction system. 45 The varied release temperatures of the sulfur atoms in DBDS would probably influence the growth kinetics and microstructures of the ternary nanostructures. As a result, the step release of S atom from DBDS in the procedures affects the nanostructures with an entire deficient S proportion generally (Tables S1−4).…”

“…These investigations suggest that the incorporation process of S element with the early formed PbSe for the ternary growth is vigorous in the early step after a very short nucleation incubation period (less than 1 min under current conditions), and the fast growth would lead to the nanostructures with chalcogens segregations and/or disordered microstructrues (Figure 2, Figure 9A, and Figure S14) as illustrated in Scheme 1. At this step, the incorporated S element is mainly due to the quick release of the first S atom from DBDS 45 and acts Pb(II) ions with fast reaction rate different from that with a relative slow release of the second S atom in the second step. This growth kinetics can also explain the different levels of the disorders of the ternaries with varied feedstock since high concentration of S source would lead to a relative fast growth accordingly.…”

A Convenient Synthesis of Thiol, Trithiocarbonate and Disulfide

“…When intermediate, trithiocarbonate sodium salt (1) reacts with primary bromide (2a), secondary bromide (2h-2k) under heating condition gives corresponding disulfide (7a, 7h-7k) at pH 14 by extracting with organic solvents, upon acidification (pH4) of aqueous layer, respective thiols (4a, 4h-4k) were isolated (table-3). This method is superior for synthesis of disulfide in odor free environment, over its preparation from sulfide, [10][11] halides, [12][13] and metal sulfur. 14 The PTC method as well as heating (80 o C) method are superior for thiol synthesis over reported methods from halide [15][16] and in particular from thiourea 17 under basic condition, and by reacting alcohol with Lawesson's reagent [18][19] .…”