(-)-(2R,5R)-Theaspirane - weak camphoraceous note Also known as: (-)-(2R,5R)-2,6,10,10-tetramethyl-1-oxaspiro[4.5]dec-6-ene Ref: Gertraut Schmidt, Gerhard Full, Peter Winterhalter, and Peter Schreier, Synthesis and Enantiodifferentiation of Isomeric Theaspiranes, J. Agric. Food Chem. l992, 40, 1188-1191

(+)-(2S,5S)-Theaspirane - odor of isomer was dominated by a fresh camphoraceous note Also known as: (+)-(2S,5S)- -2,6,10,10-tetramethyl-1-oxaspiro[4.5]dec-6-ene Ref: Gertraut Schmidt, Gerhard Full, Peter Winterhalter, and Peter Schreier, Synthesis and Enantiodifferentiation of Isomeric Theaspiranes, J. Agric. Food Chem. l992, 40, 1188-1191

(+)-(2S,5R)-Theaspirane - a camphoraceous - almost naphthalene-like note Also known as: (+)-(2S,5R)- 2,6,10,10-tetramethyl-1-oxaspiro[4.5]dec-6-ene Ref: Gertraut Schmidt, Gerhard Full, Peter Winterhalter, and Peter Schreier, Synthesis and Enantiodifferentiation of Isomeric Theaspiranes, J. Agric. Food Chem. l992, 40, 1188-1191

(-)-(2R,5S)-Theaspirane - isomer exhibited a highly attractive, intense fresh-fruity (black currant or cassis) odor Also known as: (-)-(2R,5S)-2,6,10,10-tetramethyl-1-oxaspiro[4.5]dec-6-ene Ref: Gertraut Schmidt, Gerhard Full, Peter Winterhalter, and Peter Schreier, Synthesis and Enantiodifferentiation of Isomeric Theaspiranes, J. Agric. Food Chem. l992, 40, 1188-1191

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants