Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-05-09
1979-10-09
Niebling, John F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260419, 260601R, 260593P, 260594, 2604659, 260652P, 260561R, 260561P, 260561S, 260561N, 260561B, 260555C, 260552R, 260583E, 260583EE, 260583F, 260583H, 260583N, 260584R, 260609C, 260609B, 560147, 560155, 560218, 562554, 562580, 562555, 568917, 568693, C09F 510, C11B 300, C07C 6900, C07C 9716, C07C 8300
Patent
active
041706013
ABSTRACT:
The isomers of synthetic insect sex pheromones or their precursors are separated by selectively forming an inclusion complex with the E-isomer and urea or thiourea. In order for the E-isomer complex to form selectively it is necessry that the mono-olefin which forms the complex have a primary, linear chain of at least 7 atoms, a molecular diameter of 2.8-6A, and a polar functional group having transverse dimensions of less than 6A. Branching between the olefinic bond and the polar functional group is limited to methyl groups.
REFERENCES:
butenandt, A., et al., Liebigs Ann. Chem. 658 39(1962).
Schlenk et al., J. Am. Chem. Soc., vol. 72, pp. 5001-5004 (1950).
Chemical Abstracts, vol 65:4213y.
Chemical Abstracts, vol. 72:33516n.
Chemical Abstracts, vol. 61:2053g.
Swern, D. et al., J. Am. Chem. Soc., 74, pp. 655-657 (1952).
Brown James J.
Niebling John F.
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