78808-29-4

Upstream product

• 1666-13-3 diphenyl diselenide 
• 10406-25-4 4-aminobenzyl cyanide 
• 68819-94-3 p-tolyl benzeneselenosulfonate 
• 26104-68-7 (p-cyanobenzyl)triphenylphosphonium bromide 
• 874-86-2 4-cyanobenzyl chloride 
• 2179-79-5 phenyl selenocyanate 

Downstream Products

• 78808-34-1 9-anthrylmethyl phenyl selenide 
• 18255-05-5 benzyl phenyl selenide 
• 4381-02-6 1,2-bis-(4-cyanophenyl)ethane 
• 1666-13-3 diphenyl diselenide 

Relevant academic research and scientific papers

Metal-free synthesis of unsymmetrical selenides from pyridinium salts and diselenides catalysed by visible light

We report the first metal-free selenolations of pyridinium salts with diselenides to prepare unsymmetrical organoselenides catalysed by visible light. This protocol is an efficient and green method for the preparation of unsymmetrical organoselenides because metal-free conditions and readily accessible diselenides are used.

Unusual Application for Phosphonium Salts and Phosphoranes: Synthesis of Chalcogenides

A novel strategy for the synthesis of sulfides and selenides from phosphonium salts and thio- or selenesulfonates, commercially available compounds, is described. When phosphoranes were used in the reaction, different products were obtained. The methodology does not require the use of metals, reactive species, or anhydrous conditions to be performed.

Transition-metal-free decarboxylative thiolation of stable aliphatic carboxylates

A transition-metal-free decarboxylative thiolation protocol is reported in which primary, secondary, tertiary (hetero)aryl acetates and α-CN substituted acetates undergo the decarboxylative thiolation smoothly, to deliver a variety of functionalized aryl alkyl sulfides in moderate to excellent yields. Aryl diselenides are also amenable substrates for construction of C-Se bonds under the simple and mild reaction conditions. Moreover, the protocol is successfully applied to the late-stage modification of pharmaceutical carboxylates with satisfactory chemoselectivity and functional-group compatibility. This journal is

A highly efficient heterogeneous ruthenium(III)-catalyzed reaction of diaryl diselenides with alkyl halides leading to unsymmetrical diorganyl selenides

A highly efficient heterogeneous ruthenium(III)-catalyzed reaction of diaryl diselenides with alkyl halides was achieved in DMF at 100?°C in the presence of 2?mol% of an MCM-41-immobilized bidentate nitrogen ruthenium(III) complex [MCM-41-2N-RuCl3] and zinc, yielding a variety of unsymmetrical diorganyl selenides in good to excellent yields. This new heterogeneous ruthenium catalyst can easily be prepared via a simple two-step procedure from commercially readily available and inexpensive reagents, and recovered by filtration of the reaction solution and recycled for at least eight times without a significant loss of activity.

Flash Pyrolysis of Selenides. Syntheses of Bibenzyls, Olefins, and Related Compounds

Pyrolyses of a series of selenides and diselenides were studied. Selenides and diselenides bound with an active methylene group like benzyl gave a variety of substituted bibenzyls and related ethane derivatives in high yields. Other diselenides were easily caused to cleave to give various aromatic and aliphatic olefins in good yields together with elemental selenium. Lepidopterene, paracyclophane, and benzocyclobutene were prepared by thermal cleavage of their corresponding phenylselenomethyl-substituted compounds as an application of the pyrolysis concerned.