1-benzoyloxy-2-thiocyanato-ethane 在
sodium in silica gel 作用下,
以
四氢呋喃 为溶剂,
反应 1.5h,
以78%的产率得到bis(2-benzoyloxyethyl) disulfide
参考文献:
名称:
Synthesis of Disulfanes from Organic Thiocyanates Mediated by Sodium in Silica Gel
摘要:
We report an efficient procedure for the synthesis of symmetrical disulfanes from organic thiocyanates in the presence of sodium in silica gel at room temperature. By avoiding the use of foul-smelling thiols, the present protocol provides an attractive alternative to existing methods for the preparation of symmetrical disulfanes.
The Dimethoxytrityl Resin Product Anchored Sequential Synthesis Method (DMT PASS): A Conceptually Novel Approach to Oligonucleotide Synthesis
作者:Jeffery C. Mihaichuk、T. Brian Hurley、Kurt E. Vagle、Randall S. Smith、John A. Yegge、Gretchen M. Pratt、Christopher J. Tompkins、David P. Sebesta、Wolfgang A. Pieken
DOI:10.1021/op990095t
日期:2000.5.1
Presented is a conceptuallynovel approach to oligonucleotide synthesis referred to herein as dimethoxytrityl resin product anchored sequential synthesis (DMT PASS). The DMT PASS process is characterized by the reaction of a 3‘-protected nucleoside or oligonucleotide with an excess of a nucleotide 3‘-phosphoramite or H-phosphonate which is bound to a dimethoxytrityl functionalized polystyrene resin
undergo an exchange reaction. The reactions of diaryl disulfides and dialkyl disulfides are even faster, and reach equilibrium within 5 min at room temperature in the presence of the rhodium complex and 1,2-bis(diphenylphosphino)ethane (dppe). This exchange reaction is considerably affected by the substituents on the disulfides. Treatment of diphenyl disulfide, di(p-tolyl) disulfide, and bis(sec-butyl) disulfide
Addition Reaction of Dialkyl Disulfides to Terminal Alkynes Catalyzed by a Rhodium Complex and Trifluoromethanesulfonic Acid
作者:Mieko Arisawa、Masahiko Yamaguchi
DOI:10.1021/ol015521l
日期:2001.3.1
[GRAPHICS]Addition of dialkyl disulfides to terminal alkynes is catalyzed by a rhodium-phosphine complex and trifluoromethanesulfonic acid giving (Z)-bis(alkylthio)olefins stereoselectively.
Oxidation of Disulfides to Thiolsulfinates with Hydrogen Peroxide and a Cyclic Seleninate Ester Catalyst
作者:Nicole McNeil、Ciara McDonnell、Miranda Hambrook、Thomas Back
DOI:10.3390/molecules200610748
日期:——
of regioisomers. Lipoic acid and N,N′-dibenzoylcystine dimethyl ester were oxidized readily under similar conditions. Although isolated yields of the product thiolsulfinates were generally modest, these experiments demonstrate that the method nevertheless has preparative value because of its mild conditions. The results also confirm the possibility that cyclic seleninate esters could catalyze the further
We report an efficient procedure for the synthesis of symmetrical disulfanes from organic thiocyanates in the presence of sodium in silica gel at room temperature. By avoiding the use of foul-smelling thiols, the present protocol provides an attractive alternative to existing methods for the preparation of symmetrical disulfanes.