(2-chloro-3-oxo-1-alkenyl)bicyclo(3.3.0)octane derivative

Details (2-chloro-3-oxo-1-alkenyl)bicyclo(3.3.0)octane derivative (2-chloro-3-oxo-1-alkenyl)bicyclo(3.3.0)octane derivative

1986-12-19

1989-03-07

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549415, 549305, 556441, 560119, 562501, C07D30912, C07D 6974, C07D 6116

Patent

active

048108057

ABSTRACT:
There are disclosed a (2-chloro-3-oxo-1-alkenyl)-bicyclo[3.3.0 octene derivative represented by the formula: ##STR1## wherein R.sup.1 represents --CH.sub.2 CH.sub.2 CH.sub.2 COOR.sup.5, --CH.sub.2 CH.sub.2 --O--CH.sub.2 COOR.sup.5, --CH.dbd.CHCH.sub.2 COOR.sup.5 or --CH.sub.2 CH.sub.2 C.tbd.C--COOR.sup.5 group where R.sup.5 in the groups represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sup.2 represents a hydrogen atom, an acyl group having 1 to 7 carbon atoms, a tri(1 to 7 carbon atoms)-hydrocarbylsilyl group or a group forming an acetal bonding with an oxygen atom of a hydroxy group; R.sup.3 represents a straight or branched alkyl group having 3 to 10 carbon atoms, a cycloalkyl group having 4 to 7 carbon atoms, which may be substituted by at least one alkyl group having 1 to 4 carbon atoms, a straight or branched alkenyl group having 3 to 12 carbom atoms, a straight or branched alkynyl group having 3 to 8 carbon atoms, a phenyl group or a phenoxy group which may have substituents, an alkoxy group having 1 to 6 carbon atoms or an alkyl group substituted by a cycloalkyl group having 5 to 8 carbon atoms, and a process for preparing the same which comprises reacting an aldehyde represented by the formula: ##STR2## wherein R.sup.1 and R.sup.2 have the same meanings as defined above, with kotophosphonate represented by the formula: ##STR3## wherein R.sup.3 has the same meaning as defined above and R.sup.4 represents an alkyl group having 1 to 10 carbon atoms, in the presence of a base.

REFERENCES:
Iseki et al., Chem. Lett., (4), 559-62 (1986).

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