@misc{10481/74785, year = {2022}, month = {4}, url = {http://hdl.handle.net/10481/74785}, abstract = {The stereo- and regioselective total syntheses of OMe derivatives of the scarce bioactive meroterpenoids makassaric acid (1) and fascioquinol B (2) have been accomplished. The synthetic sequences are based on the following three efficient and selective catalytic reactions: Cu-catalyzed addition of Grignard compounds to an epoxide; a regioselective Barbier-type reaction, catalyzed by Cp2TiCl; and regio- and stereoselective bioinspired cyclization, also catalyzed by Cp2TiCl. These three key processes allow us to obtain the main skeletons of 1 and 2 in a few steps. The valuable synthetic proposal shown in this work provides fast access to scarce, structurally complex meroterpenes with promising biological activities, which are a sustainable source for later studies and applications in medicine.}, organization = {FEDER (EDRF)/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades P18-FR-2877 A-FQM-079-UGR18}, publisher = {MDPI}, keywords = {Terpenes}, keywords = {Natural product}, keywords = {Titanocene}, keywords = {Synthetic methods}, keywords = {Radicals}, title = {Exploring Short and Efficient Synthetic Routes Using Titanocene(III)-Catalyzed Reactions: Total Synthesis of Natural Meroterpenes with Trisubstituted Unsaturations}, doi = {10.3390/molecules27082400}, author = {Rosales, Jennifer and Justicia Ladrón De Guevara, José}, }