13832-82-1Relevant academic research and scientific papers
Synthese von (S)-1,2-Epoxy-1,2,7,8,7',8'-hexahydro-Ψ,Ψ-carotin ((S)-1,2-epoxy-1,2-dihydro-ζ-carotin)
Arm, Christoph,Pfander, Hanspeter
, p. 1540 - 1546 (1984)
The synthesis of (S)-1,2-epoxy-1,2-dihydro-ζ-carotene ((all-E,S)-1) using (E,E)-farnesol (3) as starting material, and a Sharpless epoxidation as key step is described.
On the Photochemistry of 12,13-Didehydrosqualene
McWhorter, William W.,Jaun, Bernhard
, p. 1095 - 1103 (1987)
The photochemical formation of bicyclooctenes 3 from 12,13-didehydrosqualene (1) upon irradiation at wavelengths longer than 290 nm is reported.The same photoreaction is also observed with trienes 7 and 8 which like 1 have a remote double bond two C-atoms removed from the triene system.A configurational assignment for bicyclooctene 10 obtained from 8 and a mechanism for the observed photochemical reaction are proposed.
Process for the preparation of zeacarotenes
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Page/Page column 11, (2009/12/24)
The present invention relates to process for the preparation of zeacarotenes and to intermediates in the process for the preparation of zeacarotenes.
Electro-organic Reactions. Part 16. The Preparative-scale Cathodic Hydrogenolysis and Coupling of Benzyl-, Allyl-, Cinnamyl-, and Polyenylphosphonium salts
Utley, James H. P.,Webber, Andrew
, p. 1154 - 1160 (2007/10/02)
An investigation of the cathodic reduction of benzyltriphenylphosphonium nitrate confirms that optimum yields of the product of coupling (bibenzyl) are formed at an aluminium cathode using high current densities and in dimethylformamide or hexamethylphosphoramide solution.The cathodic reduction of allylphosphonium salts gives mainly cleavage; e.g. α-farnesene (5) is obtained in 32percent yield from the corresponding farnesylphosphonium salt.Moderately efficient coupling (ca. 30percent) is observed for the electro-reduction of trans-cinnamyltriphenylphosphonium nitrate (6) and a C15 polyenylphosphonium salt (7).The products of coupling have been fully characterised; the relative proportions of positional isomers are apparently dictated by steric factors.
