Butyl Chlorofluoronitrothioacetate (Ib). Chlorofluoronitroacetic acid (4.5 g, 0.029 mole) was added with stirring to 6 g of PC1 s at 25~ and the reaction mixture was distilled. The fraction with bp 97-102~ was treated with a small excess of butyl mercaptan. Vacuum distillation gave 3.65 g (55%) of Ib, bp 80~(2 mm Hg), n~~ 1.4540; d~~ 1.384. Found,%: C 30.82; H 2.93; F 8.21; S 14.01, C6HgCIFNO3S. Calculated,%: C 31.40; H 3.92; F 8.30; S 13.91. IR ...