4009-22-7Relevant articles and documents
The Preparation of Unsymmetrical Diacetylenes from Alkenynyl Triflates
Stang, Peter J.,Dixit, Vandana
, p. 962 - 963 (1985)
Alkenynyl triflates 5 (alkynylvinyl trifluoromethanesulfonates) are readily converted into unsymmetrical diacetylenes 6 in good yields by the base-initiated elimination of trifluoromethanesulfonic acid.
"Anti-Michael addition" of Grignard reagents to sulfonylacetylenes: Synthesis of alkynes
Esteban, Francisco,Boughani, Lazhar,García Ruano, José L.,Fraile, Alberto,Alemán, José
, p. 3901 - 3908 (2017/07/11)
In this work, the addition of Grignard reagents to arylsulfonylacetylenes, which undergoes an "anti-Michael addition", resulting in their alkynylation under very mild conditions is described. The simplicity of the experimental procedure and the functional
One-pot synthesis and functionalization of polyynes via alkylidene carbenoids
Luu, Thanh,Morisaki, Yasuhiro,Tykwinski, Rik R.
, p. 1158 - 1162 (2008/12/22)
A one-pot, two-step method for the synthesis of diynes and triynes is reported. The reaction of a dibromoolefinic precursor with BuLi effects a Fritsch-Buttenberg-Wiechell rearrangement and generates a lithium acetylide intermediate, which is then trapped