Snider

R. Edgar and R. Snider, in D. E. Clark and co-workers, eds.. Microwaves Theory and Application in Materials Processing, American Ceramics Society, Westerville, Ohio, 1991. 

Snider and coworkers125 have reported the Lewis acid catalyzed [2 + 2]cycloaddition of (phenylsulfonyl)allene 112. The reaction with methylenecyclohexane in dichloro-methane gives a 25% yield of an 8 1 mixture of 210 and 211 (equation 132). An addition reaction of l-(p-tolylsulfonyl)ethylene with enamines gives aminocyanobutanes via the zwitterionic intermediate (212) as shown in equation 133126. 

The ene reaction130 of ethynyl p-tolyl sulfone with alkenes has been investigated by Snider and coworkers131 using EtAlCl2 as a Lewis acid catalyst (equation 136). The reaction is very sluggish requiring 4 to 18 days at room temperature to obtain a reasonable... 

Snider S., McClung R. E. D. Raman studies of molecular reorientation in liquid sulfur hexafluoride, Can. J. Phys. 52, 1209-14 (1974). 

Snider R. F., Coombe D. A. Kinetic cross sections in the infinite order sudden approximation, J. Phys. Chem. 86, 1164-74 (1982). 

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