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(5 R * , 9 S * )‐ and (5 R * , 9 R * )‐2,2,9‐Trimethyl‐1,6‐dioxaspiro[4.4]non‐3‐ene and their Dihydro Derivatives as New Constituents of Geranium Oil
Author(s) -
Kaiser Roman
Publication year - 1984
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19840670504
Subject(s) - chemistry , spectral line , physics , astronomy
(5 R * ,9 S * )‐ and (5 R * ,9 R * )‐2,2,9‐Trimethyl‐1,6‐dioxaspiro [4.4]non‐3‐ene ( 1a and 1b resp.) and their dihydro derivatives 2a and 2b are described as new constituents of geranium oil. The structures and configurations of 1a , 1b , 2a , and 2b , are based on spectra interpretation and syntheses. Also some other monoterpenoid constituents identified in the same boiling range are discussed.