19093-20-0Relevant articles and documents
UNIQUE HALOGEN-INDUCED CYCLIZATIONS, REAGENTS THEREFOR, AND COMPOUNDS PRODUCED THEREBY
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Page/Page column 122-123, (2012/04/04)
This disclosure is related to halonium compounds useful for cyclization of polyenes, alkenoic acids, and alkenyl alkyl ethers, and halogenation of aromatic compounds. The synthesis of such halonium compounds, compounds made using such halonium compounds, and synthesis of natural compounds, including decalins, using the halonium compounds is also disclosed. A representative halonium compound of the disclosure is: Formula (I).
A general strategy for the stereocontrolled preparation of diverse 8- and 9-membered Laurencia -type bromoethers
Snyder, Scott A.,Treitler, Daniel S.,Brucks, Alexandria P.,Sattler, Wesley
supporting information; experimental part, p. 15898 - 15901 (2011/11/13)
A unique procedure to effect a ring-expanding bromoetherification process is described, wherein tetrahydrofurans and tetrahydropyrans are smoothly transformed into 8- and 9-membered bromoethers in a regio- and stereocontrolled manner through the use of BDSB (bromodiethylsulfonium bromopentachloroantimonate). These products resemble the cores of the Laurencia C15 acetogenins. In light of the generality and effectiveness of the approach, this work provides a unique strategy for their laboratory preparation and may implicate a possible biosynthesis pathway.
Lewis Acid-Induced Reactions of γ-Trialkylstannyl Ketones. Cyclization, Carbon-Carbon Bond Cleavage, and 1,5-Hydride Shift
Sato, Tadashi,Tachibana, Kazutaka,Kawase, Akira,Hirose, Tomokazu
, p. 937 - 940 (2007/10/02)
γ-Trialkylstannyl ketones underwent cyclobutanation, C-C bond cleavage, or 1,5-hydride shift, depending upon the substitution pattern of the substrates.