13603-84-4Relevant articles and documents
Reduction of propargylic sulfones to (Z)-allylic sulfones using zinc and ammonium chloride
Sheldrake, Helen M.,Wallace, Timothy W.
, p. 4407 - 4411 (2008/02/03)
Propargylic sulfones can be cis-hydrogenated using commercial zinc powder and ammonium chloride in THF-water at room temperature, the major products being the corresponding (Z)-allylic sulfones. Other reducible groups (alkene, benzyloxy) are not affected. Allenylsulfones are implicated in one of the possible reaction pathways.
Cycloaddition of (Phenylsulfonyl)-1,2-propadienes with Diazomethane. Novel Rearrangement Reactions of the Resulting Cycloadducts
Padwa, Albert,Filipkowski, Michelle A.,Kline, Donald N.,Murphree, S. Shaun,Yeske, Philip E.
, p. 2061 - 2067 (2007/10/02)
The cycloaddition reactions of several phenylsulfonyl-substituted allenes with diazomethane have been investigated.The major products formed were identified as 3-(phenylsulfonyl)-4-methylene-2-pyrazolines.These pyrazolines engage in a variety of mechanist