2,2-Difluoro-4-amino-1,3-benzodioxole

2,2-Difluoro-PGE.sub.1 analogs

2,2-Difluoro-PGE.sub.2 analogs

2,2-Difluoro-PGF.sub.1 analogs

2,2-Difluoro-PGF.sub.2 analogs

2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermedia

2,2-difluorocyclopropyl derivatives

2,2-difluorocyclopropyl derivatives

2,2-difluorocyclopropyl derivatives

2,2-difluorocyclopropylethane derivatives, processes for their p

2,2-Dihalo-6-halo-6-(1-haloisobutyl)cyclohexanone

2,2-dihalovinyl haloformates and process of preparation

2,2-Dimethyl-1,2-dihydroquinoline derivatives useful as antioxid

2,2-Dimethylcyclopropane-carboxylic acid derivatives

2,2-Dimethylcyclopropanecarbaldehyde dimethyl acetal derivatives

2,2-Dinitrobutane-1,4-diol and monoesters

2,3 Diketo-piperazinocarbonylamino alkanoic acids and derivative

2,3,4,4a-tetrahydro-1H-pyrazino(1,2-a) quinoxalin-5(6H)one...

2,3,4,5-tetrahalogenobenzene derivatives

2,3,4,5-tetrahyd ro-1H-[1,2,5]triazocino(1,2-a)[1,2,4]benzotriaz