M-Caproic anhydride

The distillation at atmospheric pressure is then discontinued, the liquid is allowed to cool somewhat, and distillation is continued at a pressure of 3-10 mm. After a fore-run of less than 20 g., M-caproic anhydride is collected (b.p. io9-xi2°/3 mm., n8-i2i°/6 mm.). The yield is 86-95 g. (80-87 Per cent °f the theoretical amount) (Note 5). 

M-Caproic anhydride has been prepared by heating caproic acid with acetic anhydride,3 by heating sodium caproate and acetic anhydride in a sealed tube,4 by the action of phosphorus oxychloride on barium caproate,6 by the action of acetyl chloride on caproic acid,6 and by treating a mixture of sodium caproate and sulfur with chlorine.7 The method used in the present synthesis was first described by Hurd and Dull.8... 

M-CAPROIC ANHYDRIDE, 21, 13 Capronitrile, 26, 33 Caproylchlororesorcinol, 20, 58 o-Caproylphenol, 20, 58 -Caproylphenol, 20, 58 Caproylresorcinol, 20, 58 w-Carbethoxypelargonyl chloride, 25, 21 5-Carbethoxyvaleiyl chloride, 25, 21 CARBINOL, TRIPHENYL-, 23, 98 Carbinol, tris-(4-phenylphenyl)-,... 

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