A series of monopropargyl catechol derivatives synthesized via the Sonogashira coupling reaction were stereoselectively converted to (Z)-2-ylidene-1,4-benzodioxanes using FeCl3 as the catalyst, and structurally characterized by 1H NMR, 13C NMR and HRMS techniques.
LIANG Lin-Feng
,
FANG Qi
,
XU Xiao-Bing
,
LI Yan-Zhong
. Iron-Catalyzed Stereoselective Synthesis of (Z)-2-Ylidene-1,4-benzodioxanes in the Presence of Cs2CO3[J]. Chinese Journal of Organic Chemistry, 2012
, 32(02)
: 409
-412
.
DOI: 10.6023/cjoc1107111
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