This ester, which has not yet been observed in nature, is formed even upon standing of a solution of geraniol in crystallized formic acid,3) better still upon the addition of a small amount of a mineral acid.4) According to Tiemann (loc. cit.) the ester boils at 113 to 114° (15 mm.), according to Bertram at 104 to 105° (10 to 11 mm.).

1) Berl. Berichte 31 (1898), 839.

2) Journ. f. prakt. Chem. II. 64 (1901), 256.

3) Tiemann and Schmidt, Berl. Berichte 29 (1896), 907, footnote.

4) Bertram, G. I. P. 80 711.

In connection with a technical product of about 91 p. c. ester content, Schimmel & Co. observed the following constants: d15o 0,9248; aD + 0°; nD20o 1,46456; soluble in 10 parts and more of 70 p. c. alcohol.

Like all formates, the ester is prone to decomposition.