Showing papers on "Terpene published in 1971"
TL;DR: In this article, the hydride shifts accompanying 2,3-epoxysqualene cyclisation to lanosterol in yeast and to β-amyrin in peas have been checked using 2, 3-epoxy[11, 14-3H2]squalene.
Abstract: The hydride shifts accompanying 2,3-epoxysqualene cyclisation to lanosterol in yeast and to β-amyrin in peas have been checked using 2,3-epoxy[11,14-3H2]squalene. The results support the Ruzicka–Eschenmoser hypothesis and not a plausible alternative which was considered. The synthesis of 2,3-epoxy[11,14-3H2]squalene by two routes is described.
17 citations
TL;DR: The structures of podolactones C and D, the first terpenes known to contain a sulphoxide grouping, were shown to be (3) and (4) respectively.
Abstract: The structures of podolactones C and D, the first terpenes known to contain a sulphoxide grouping, are shown to be (3) and (4) respectively.
16 citations
TL;DR: Although control of terpene levels by the plant was generally similar in cortex and phloem, small but definite differences were present in some instances, it is concluded that the two oleoresins should be analysed separately in chemosystematic work.
13 citations
8 citations
TL;DR: The labelling pattern of linalool biosynthesized from [2- 14 C]mevalonic acid by Cinnamomum camphora was consistent with the pathway shown in the scheme as mentioned in this paper.
7 citations
TL;DR: In this paper, a new convenient procedure for the preparation of linear terpenic alcohols using naphthyllithium and isoprene was proposed, which can be found in Table 1.
Abstract: Recently, isoprene has been dimerized by various organometallic complexes, and various new terpenio hydrocarbons can thus be prepared.1~2 However, a direct synthesis of terpenic alcohols from isoprene has not yet appeared. It was reported by us that naphthyllithium in tetrahydrofuran dimerizes isoprene to give linear isoprene dimers, a mixture of 2,6-dimethylocta-2,6-diene, 2,7-dimethylocta-2,6-diene, and 2,6-dimethylocta-l,6-diene.3 This paper concerns a new convenient procedure for the preparation of linear terpenic alcohols using naphthyllithium and isoprene.
7 citations