2-[3-Methoxy-1-methyl-3-(4-methyl-cyclohexa-1,3-dienylmethoxy)-propylidene]-malononitrile 反应 22.0h,
生成 (1R,6S,8R)-4-Methoxy-6,8-dimethyl-3-oxa-tricyclo[6.2.2.0
1,6]dodec-9-ene-7,7-dicarbonitrile 、 (1S,6S,8S)-4-Methoxy-6,8-dimethyl-3-oxa-tricyclo[6.2.2.0
1,6]dodec-9-ene-7,7-dicarbonitrile