53690-50-9Relevant academic research and scientific papers
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.
