Two asymmetric photosyntheses of a [6] helicene skeleton, induced by (‐) menthyl esters, have been studied (Ia–IIa and Ib–IIb). The optical yield of the two reactions is of the same magnitude (5‐6%), but the substituted helicenes produced in excess have opposite configurations. Copyright © 1975 Wiley‐VCH Verlag GmbH & Co. KGaA, WeinheimSCOPUS: ar.jinfo:eu-repo/semantics/publishe
[[abstract]]Three C2-symmetric (10R,11R)-diethyl substituted dibenzosuberane (DBS)-based helicenes w...
International audienceSynthesis of two dithia[9]helicenes by means of a LED-based double photocycliz...
Stammel C, Fröhlich R, Wolff C, Wenck H, de Meijere A, Mattay J. Synthesis and X-ray analysis of new...
A very high diastereoselectivity is observed when the (‐)‐menthyl ester I is photocyclised at −78°C:...
Helicenes are a class of polyaromatic compounds that have been increasingly studied over the past ye...
International audienceIn this review, we discuss the rich chemistry of helicenes and helicenoids con...
The role of the helicity of small molecules in enantioselective catalysis, molecular recognition, se...
De nouveaux phosphinites énantiopurs à la structure hélicoïdale ont été synthétisés et utilisés en c...
The first asymmetric organocatalytic synthesis of helicenes is reported. A novel SPINOL-derived phos...
In this work, synthetic pathways providing suitable phosphorous derivatives of helicenes and their t...
[[abstract]]Abstract The triaryethene synthesis adopt helical shapes(ie helicenes), due to the ster...
In this Concept Article, we analyze known helicene systems that function as chiroptical photoswitche...
Helicenes are organic compounds consisting of a series of ortho-condense d aromatic rings which, due...
Oxygen atoms of cationic dioxa and azaoxa [6]helicenes can be exchanged by amino groups to form azao...
La conception de nouvelles molécules chirales est depuis plusieurs décennies un enjeu majeur. Ces tr...
[[abstract]]Three C2-symmetric (10R,11R)-diethyl substituted dibenzosuberane (DBS)-based helicenes w...
International audienceSynthesis of two dithia[9]helicenes by means of a LED-based double photocycliz...
Stammel C, Fröhlich R, Wolff C, Wenck H, de Meijere A, Mattay J. Synthesis and X-ray analysis of new...
A very high diastereoselectivity is observed when the (‐)‐menthyl ester I is photocyclised at −78°C:...
Helicenes are a class of polyaromatic compounds that have been increasingly studied over the past ye...
International audienceIn this review, we discuss the rich chemistry of helicenes and helicenoids con...
The role of the helicity of small molecules in enantioselective catalysis, molecular recognition, se...
De nouveaux phosphinites énantiopurs à la structure hélicoïdale ont été synthétisés et utilisés en c...
The first asymmetric organocatalytic synthesis of helicenes is reported. A novel SPINOL-derived phos...
In this work, synthetic pathways providing suitable phosphorous derivatives of helicenes and their t...
[[abstract]]Abstract The triaryethene synthesis adopt helical shapes(ie helicenes), due to the ster...
In this Concept Article, we analyze known helicene systems that function as chiroptical photoswitche...
Helicenes are organic compounds consisting of a series of ortho-condense d aromatic rings which, due...
Oxygen atoms of cationic dioxa and azaoxa [6]helicenes can be exchanged by amino groups to form azao...
La conception de nouvelles molécules chirales est depuis plusieurs décennies un enjeu majeur. Ces tr...
[[abstract]]Three C2-symmetric (10R,11R)-diethyl substituted dibenzosuberane (DBS)-based helicenes w...
International audienceSynthesis of two dithia[9]helicenes by means of a LED-based double photocycliz...
Stammel C, Fröhlich R, Wolff C, Wenck H, de Meijere A, Mattay J. Synthesis and X-ray analysis of new...