Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-03-12
1991-10-01
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
544358, 546230, 558381, C07D21308, C07D21312
Patent
active
050535161
ABSTRACT:
3-Methyl-2-alkylamino-1-halo-1-cyano cyclobutanes are cleaved under acid conditions to form 2-halo-4-formylvaleronitrile and 4-formyl-2-pentenonitrile which can be cyclized to form 2-substituted-5-methylpyridine derivatives. These pyridine derivatives are useful as starting materials in the manufacture of herbicides such as fluazifop-butyl.
REFERENCES:
patent: 2342607 (1944-07-01), Bruson et al.
patent: 3051622 (1962-08-01), Kuna et al.
patent: 4435573 (1984-03-01), Lysenko et al.
patent: 4469896 (1984-09-01), Steiner et al.
patent: 4473696 (1984-09-01), Hartmann et al.
patent: 4584380 (1986-04-01), Hartmann et al.
patent: 4658031 (1987-04-01), Hartmann et al.
patent: 4665186 (1987-05-01), Steiner et al.
patent: 4709063 (1987-11-01), Nelson et al.
Madsen et al.-Tetrahedron, vol. 24, pp. 3369-3379 (1968).
Kolind-Andersen et al.-Bull. Soc. Chim. Belg., vol. 86, pp. 543-550 (1977).
Brannock et al.-Journal of Organic Chemistry, vol. 29, pp. 801-812 (1964).
Chemical Abstracts, vol. 104 (No. 21), Abst. No. 186,315-a, May 26, 1986.
Hartmann Ludwig A.
Stephen John F.
Ackerman Joel G.
ICI Americas Inc.
Rotman Alan L.
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