To provide a novel arylamine compound with a low refractive index. The provided arylamine compound includes at least one aromatic group. The aromatic group includes a first benzene ring, a second benzene ring, a third benzene ring, and at least three alkyl groups. The first benzene ring, the second benzene ring, and the third benzene ring are directly bonded in this order. The first benzene ring is bonded to nitrogen of amine. The first benzene ring may further include a substituted or unsubstituted phenyl group. The second benzene ring or the third benzene ring may further include an alkylated phenyl group. Each of first positions and third positions of two or more of the first to third benzene rings is independently bonded to another benzene ring, a benzene ring of the alkylated phenyl group, any of the at least three alkyl groups, or the nitrogen of the amine.
Mimicking enzymatic cation–π interactions in hydrazide catalyst design: access to <i>trans</i>-decalin frameworks
作者:Josephine M. Warnica、James L. Gleason
DOI:10.1039/d3cc03351a
日期:——
Chiral bicyclic hydrazide organocatalysts have previously been shown to catalyze the cyclization of (Z)-polyene substrates with high enantioselectivity, but with poor selectivity for the corresponding (E)-polyenes. Here we demonstrate that diazapane carboxylates bearing terphenyl groups efficiently catalyze (E)-polyene bicyclization with enantioselectivities up to 94 : 6 er and with high diastereoselectivity
手性双环酰肼有机催化剂先前已被证明能够以高对映选择性催化 ( Z )-多烯底物的环化,但对相应的 ( E )-多烯的选择性较差。在这里,我们证明带有三联苯的二氮杂烷羧酸酯能够有效催化(E)-多烯双环化,其对映选择性高达 94:6 er,并且对反式十氢萘形成具有高非对映选择性。该催化剂通过亚胺离子形成同时引发环化并通过阳离子-π相互作用稳定中间体/过渡态来发挥作用。
Volz, Heinrich; Hassler, Michael, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1988, vol. 43, # 8, p. 1043 - 1052
作者:Volz, Heinrich、Hassler, Michael
DOI:——
日期:——
VOLZ, HEINRICH;HASSLER, MICHAEL, Z. NATURFORSCH. B, 43,(1988) N 8, C. 1043-1052