AKT. 4. — Y. SHIBATA : TUE ACTION OF 



II 



(3mh [Ber., (1902), 35, 526] 



III 



eacMo [Ben, (1888), 21, 2o;JU] 



IV 



a^aukl [J.pr. ehem., (1891), 44, l-T] 



%\cm [Ann., (1888), 245, 12^] 

 G-i-lemiiun)eviim.[Ann., (190i),316, 57] 



Ol' these, neither III nor IV appears to be in agreement with 

 the facts above mentioned, for according to III (which is con- 

 structed by hiying six tetrahedra alternately above and below the 

 plane formed by their bases), o-phthalic esters, in reacting with 

 the Grignard reagent, should also give the glycols just as tere- 

 phthalic and succinic esters, which is not found tu be the case, 

 while in IV (wliicli is constructed by laying six tetrahedra upon a 

 plane hexagon), though the distance JK'twoou tlic y>r/,>Yr-p(^sitions is 

 double that between the or/^o-positions, still the two carboxyl groups 



