Term Name: ketal
Synonyms: ketals
Definition: An acetal of formula R2C(OR)2 (R =/= H) derived from a ketone by replacement of the oxo group by two hydrocarbyloxy groups. The class name 'ketals', once abandoned by IUPAC, has been reinstated as a subclass of acetals.
Ontology: ChEBI [CHEBI:59777]  ( EBI )

Relationships
is a type of: acetal
has subtype: (1R)-1-[(3aR,5S,6S,6aS)-6-[3-(dimethylamino)propoxy]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]ethane-1,2-diol (2R)-3-[(2S,6R,8S,11R)-2-[(2R)-4-[(2S,2'R,4R,4aS,6R,8aR)-4-hydroxy-2-[(1S,3S)-1-hydroxy-3-[(2S,3R,6S)-3-methyl-1,7-dioxaspiro[5.5]undecan-2-yl]butyl]-3-methylene-2'-spiro[4a,7,8,8a-tetrahydro-4H-pyrano[3,2-b]pyran-6,5'-oxolane]yl]but-3-en-2-yl]-11-hydroxy-4-methyl-1,7-dioxaspiro[5.5]undec-4-en-8-yl]-2-hydroxy-2-methylpropanoic acid (2R,5S,7S)-3alpha-hydroxyexogonic acid (2S,3R,4S,5S,6S)-6-[(2R,5R)-5-[(2S,5R)-5-[(2R,3R,4R,5S,6S,7S,9S)-9-[(1R,3S)-1-hydroxy-2,3-dimethoxy-2-methylbutyl]-3,7-dimethoxy-2,4,6-trimethyl-1,10-dioxaspiro[4.5]decan-2-yl]oxolan-2-yl]oxolan-2-yl]-2,3,5-trimethyloxane-2,4-diol (2S,4R,6R,8S)-2,4,8-Trimethyl-1,7-dioxaspiro-[5.5]undecane (2S,6R,8S)-2,8-Dimethyl-1,7-dioxaspiro[5.5]undecane (2S,6S,8S)-2,8-Dimethyl-1,7-dioxaspiro[5.5]undecane (2Z,4'Z)-2-(5-Methylthio-4-penten-2-ynylidene)-1,6-dioxaspiro[4.4]non-3-ene (3R,6S)-3-Hydroxy-1,7-dioxaspiro[5.5]undecane (3S,6S)-3-Hydroxy-1,7-dioxaspiro[5.5]undecane (4R,6S)-4-Hydroxy-1,7-dioxaspiro[5.5]undecane (4S,6S)-4-Hydroxy-1,7-dioxaspiro[5.5]undecane (5R,7S)-7-Methyl-1,6-dioxaspiro[4.5]decane (5S,7S)-7-Methyl-1,6-dioxaspiro[4.5]decane (6R,8S)-2,2,8-Trimethyl-1,7-dioxaspiro[5.5]undecane (S)-1,7-Dioxaspiro[5.5]undecane 1,1'-(Tetrahydro-6a-hydroxy-2,3a,5-trimethylfuro[2,3-d]-1,3-dioxole-2,5-diyl)bis-ethanone 1,6-Dioxaspiro[4.5]decane 1-[(5R,6S,6aR)-6-[3-(dimethylamino)propoxy]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]ethane-1,2-diol 2,2,4-Trimethyl-1,3-dioxolane 2,2,7,7-Tetramethyl-1,6-dioxaspiro[4.4]non-3-ene 2,2,7,7-Tetramethyl-1,6-dioxaspiro[4.4]nona-3,8-diene 2,7-Diethyl-1,6-dioxaspiro[4.4]nonane 2,7-Diethyl-1,6-dioxaspiro[4.5]decane 2,7-Dipropyl-1,6-dioxaspiro[4.4]nonane 2-(1,4-dioxaspiro[4.5]decan-3-ylmethyl)guanidine 2-(2-Thienylmethylene)-1,6-dioxaspiro[4.4]non-3-ene 2-(Hexa-2,4-diyn-1-ylidene)-1,6-dioxa-spiro[4,4]non-3-ene 2-[(5-Methylsulfinyl)-4-penten-2-ynylidene]-1,6-dioxaspiro[4.4]non-3-ene 2-epimutalomycin 2-Ethyl-1,6-dioxaspiro[4.4]nonane 2-Ethyl-1,7-dioxaspiro[5.5]undecane 2-Ethyl-7-methyl-1,6-dioxaspiro[4.5]decane 2-Ethyl-8-methyl-1,7-dioxaspiro[5.5]undecane 2-Methyl-1,6-dioxaspiro[4.5]decane 2-Methyl-1,7-dioxaspiro[5.5]undecane 2-Methyl-7-propyl-1,6-dioxaspiro[4.4]nonane 2-Propyl-1,7-dioxaspiro[5.5]undecane 2S,5R-chalcogran 2S-Ethyl-7-methyl-1,6-dioxaspiro[4.5]decane 3-(3-furylmethylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 3-Hydroxy-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane 4-(1,4-dioxaspiro[4.11]hexadecan-3-ylmethyl)morpholine 5,5,6,6-tetramethoxyhexane-1,2,3,4-tetrol 5,6-Isopropylidene-L-ascorbic acid 5-[Bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione 6-Methyl-5-hepten-2-one propyleneglycol acetal 6-O-methylpapyracon B 6-O-methylpapyracon C 7-Butyl-2-methyl-1,6-dioxaspiro[4.5]decane 7-deoxybotrylactone 7-Ethyl-2R-methyl-1,6-dioxaspiro[4.5]decane 7E-Mycosinyl acetate 8-Methyl-2-propyl-1,7-dioxaspiro[5.5]undecane 18-Methyl-nonadecane-1,2-diol, isopropylidene derivative 18-O-demethylpederin 28-epimutalomycin Acanthifolicin Actinolide B Aspereusin A Aspergilsmin F Aspergilsmin G Aspergoterpenin A Asperpentenone A Aureonitol A Aureonitol B Chaephilone E Chaetomugilin K Chaetomugilin L Citrinal B Citrinoviric acid Clitocybulol B Conocenol C cyclic ketal Cycloarthropsadiol C Diaphorin Dinemasone A dinophysistoxin 1 dinophysistoxin 2 Dioxolamycin Epiaspereusin A Epinigericin etoxadrol Fradic acid B Grisorixin Grisorixin G1 Guignardic acid Ingenol-3,4-5,20-diacetonide Isochromophilone C Isochromophilone D Isochromophilone E Javanicol A Javanicol B Kamahine C Leontogenin Limacellone LSM-24581 Monascusazaphilone A Monensin sodium salt Murranolide A Myrolactone A N-(1-(2,2-dimethyl-5-undecyl-1,3-dioxolan-4-yl)-2-hydroxyethyl)stearamide N-[(4S,5R,7S,9S)-9-ethyl-7-hydroxy-8,8-dimethyl-2-oxo-1,10-dioxaspiro[4.5]decan-4-yl]acetamide Nidulal Nigericin sodium Nocamycin Okadaic acid potassium salt Okaspirodiol Opaliferin Papyracillic acid Papyracillic acid C Papyracillic acid methyl Acetal Pestalotiphain B Promomycin promoxolane Radianspene F Ramariolide B RP-1551-5 Saponaceolide F Saponaceolide H Saponaceolide I Saponaceolide J Saponaceolide K Saponaceolide L Saponaceolide M Saponaceolide N Saponaceolide O Saponaceolide P Saponaceolide T Sargabetaopenilline G Sclerotiorin A Sclerotiorin B Sclerotiorin C Spiroleptosphol B Spiroleptosphol X Stereumin O Stresgenin B Sydowether Talactone D Talaromycin A Terrosamycin B Thielavialide A Thielavialide B Thielavialide C Thielavialide D Tirandamycin C Tirandamycin G Trematosphone A Trichocladinol A Trichocladinol D Trichocladinol E Trichocladinol F Trichodermanone A Trichodermanone B Tricholopardin A Versicorin