137768-46-8Relevant academic research and scientific papers
A General Synthesis of (Z)-1,2-Ethenediol Derivatives
Wulff, Guenter,Birnbrich, Paul
, p. 473 - 478 (2007/10/02)
By retro-Diels-Alder reaction of suitably substituted 9,10-dihydro-9,10-ethanoanthracene-cis-11,12-diol derivatives (4, 6, 8, 10, 12, 14) a number of known and unknown (Z)-1,2-disubstituted ethenes (5, 7, 9, 11, 13, 14) have been prepared in high yield, including derivatives with two different substitutents.In contrast to this, attempts to prepare 1,3,2-dioxasiloles bearing only substitutents on the silicon atom gave dimers containing the ten-membered ring system (Z,Z)-2,2,7,7-tetraalkyl-1,3,6,8-tetraoxa-2,7-disilacyclodeca-4,9-diene (19b, 21b, 23b, 25b).Again these compounds are formed diastereoselectively with respect to the double bonds. Key Words: Ethenes, (Z)-1,2-disubstituted / retro-Diels-Alder synthesis / 1,3,6,8-Tetraoxa-2,7-disilacyclodeca-4,9-diene, (Z,Z)-2,2,7,7-tetraalkyl-, preparation of / 1,3,2-Dioxasiloles, dimerization of
