3-Acetoxy-9.beta.-11.beta.-epoxy-dienes and the preparation of t

3-Acyl-4-ethyl-2-oxazolones and oxazolidinones

3-Acylamino-1-carboxymethylaminocarbonyl-2-azetidinones

3-Acylamino-1-sulfonylaminocarbonylmethoxy-2-azetidinones

3-Acylamino-2-oxoazetidine-1-(.beta.-oxopropionic acid)

3-Alkoxy-D-homo-C-nor-13.alpha., 14.alpha.-gona-1,3,5,(10),6,8-p

3-Alkoxy-thianapthene-2-carboxamides

3-Alkoxyisothiazoles

3-Alkyl xanthene compounds

3-Alkyl-2-(6-carboxyhexyl)cyclopentanones and esters and salts t

3-Alkyl-2-(nitromethylene) thiazolidine

3-Alkyl-4-oxo-imidazolidines and their 1-oxyls

3-Alkylamino- alpha-aminomethyl-4-hydroxybenzyl alcohols

3-Alkylidine azetidine compound and their production

3-Alkylisoxazole derivatives and herbicides containing them

3-Alkylsilyl-2-oxazolidonone compounds and synthesis thereof

3-Alkylthio and 3-heterothio derivatives of [[(thioalkoxy)thioca

3-Amidinocoumarin dyes

3-Amido-1,2,3,4-tetrahydrocarbazoles

3-Amidocoumaranones