TY - JOUR A1 - Schmidt, Bernd A1 - Kunz, Oliver T1 - Stereoselective synthesis of dienyl phosphonates via extended tethered ring-closing metathesis T2 - Organic letters N2 - Allylphosphonates of allylic alcohols were converted to conjugated dienyl phosphonates in a one-flask reaction, comprising a ring-closing metathesis (RCM), a base-induced ring-opening, and an alkylation. The ring-opening proceeds with very high diastereoselectivity, giving exclusively the (1Z,3E)-configured dienes. Single diastereomers and mixtures of diastereomers can be used as starting materials without noticeable effect on the diastereoselectivity of the sequence. Y1 - 2013 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/34741 SN - 1523-7060 SN - 1523-7052 VL - 15 IS - 17 SP - 4470 EP - 4473 PB - American Chemical Society CY - Washington ER -