Hindered rotation in an "exploded" biphenyl.
The first cases of hindered rotation around the triple bond in simple diphenylacetylenes were observed, including that in chiral 2,2'-bis(trimethylsilyl)-6,6'-bis(dimethylthexylsilyl)diphenylacetylene.
Miljanić
Ognjen S
OS
Center for New Directions in Organic Synthesis, Department of Chemistry, University of California at Berkeley, and the Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, USA.
Han
Sangdon
S
Holmes
Daniel
D
Schaller
Gaston R
GR
Vollhardt
K Peter C
KP
D001713:Biphenyl Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D012399:Rotation; D013237:Stereoisomerism; D014297:Trimethylsilyl Compounds / Q000138:chemical synthesis / Q000737:chemistry
C502490:2,2'-bis(trimethylsilyl)-6,6'-bis(dimethylthexylsilyl)diphenylacetylene; D001713:Biphenyl Compounds; D014297:Trimethylsilyl Compounds