6573-64-4Relevant academic research and scientific papers
Double cationic propargylation: From linear to polycyclic ethers
Diaz, David,Martin, Tomas,Martin, Victor S.
, p. 3289 - 3291 (2007/10/03)
Equation presented The trapping of cations generated from Co2(CO)6-bispropargylic alcohols provided diethers in good yield. The procedure is also valid when two vicinal acetylenes are present. The methodology can be applied to the sy
Synthesis of Heterocyclic Diynes and their Reaction with CpCo(CO)2
Gleiter, Rolf,Rittinger, Stefan,Langer, Heinrich
, p. 357 - 363 (2007/10/02)
The preparation of the heterocyclic diynes 1,16-dithia-3,8-cyclodecadiyne (1b), thia-3,8-cyclodecadiyne (11), 1-thia-6-selena-3,8-cyclodecadiyne (12), oxa-3,8-cyclodecadiyne (13), 1,6-dioxa-3,8-cyclodecadiyne (14), 1-oxa-6-thia-3,8-cyclodecadiyne (15), 1,6-diselena-3,8-cyclodecadiyne (26), thia-3,9-cycloundecadiyne (22a), thia-3,13-cyclopentadecadiyne (22b) and its selena analogues 23a, 23b is described.The thia and monoselena compounds are obtained by a thia- or selenacyclization of the corresponding dibromides.Compound 26 has been obtained by a Misumi coupling reaction.The thiacycloalkadienes of medium-sized rings (10, 11) react with CpCo(CO)2 to yield (2,5)thiophenophane derivatives.Acyclic thiadialkynes or thiacyclodialkynes of larger ring size (22b) with CpCo(CO)2 by cycloaddition.
SYNTHESIS AND PROPERTIES OF TEN-MEMBERED CYCLODIYNES WITH ONE OR TWO HETERO ATOMS
Gleiter, Rolf,Rittinger, Stefan
, p. 4529 - 4532 (2007/10/02)
The synthesis of the heterocyclic decadiynes 1 and 2 via a cyclization sequence and subsequent CpCo-induced oligomerization of 1a as well as its acyclic analogues 3c and 9 are reported.
