Chiral overcrowded alkenes; Asymmetric synthesis of (3S,3′S)‐(M,M)‐(E)‐(+)‐1,1′,2,2′,3,3′,4,4′‐octahydro‐3,3′7,7′‐tetramethyl‐4,4′‐biphenanthrylidenes

Abstract
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