Furobenzopyran derivatives, process for preparation of same and

Details Furobenzopyran derivatives, process for preparation of same and Furobenzopyran derivatives, process for preparation of same and

1994-06-22

1996-06-25

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549478, C07D30720

Patent

active

055301460

ABSTRACT:
Furobenzopyran derivatives of the general formula (I): ##STR1## in which R.sup.1 is a lower alkyl group, R.sup.2 is a lower alkyl group, lower alkoxy group, halogen atom or lower alkyl group substituted by a halogen atom, R.sup.3 is a lower alkyl group, lower alkoxy group, halogen atom, lower alkyl group substituted by a halogen atom, phenoxy group or benzyloxy group, R.sup.4 is a hydrogen atom or lower alkyl group and m and n are any integers between 0 and 4, have an excellent herbicidal activity on weeds and are completely selective to crops such as paddy rice, soybeans and cotton.

REFERENCES:
Martin et al., Carbohydrate Research, 171, 211-222 (1987).
Martin et al., ibid., 196, 41-58 (1990).

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