Reference

Syntheses and circular dichroism of poly{

Syntheses and circular dichroism of poly{.gamma.-[2-(9-carbazolyl)ethyl] L-glutamate} and poly{.beta.-[2-(9-carbazolyl)ethyl] L-aspartate}. Nomori, Hiroyuki; Enomoto, Takamichi; Yoshikawa, Masao; Hatano, Masahiro (Chem. Res. Inst. Non-Aqueous Solutions, Tohoku Univ., Sendai, Japan). Makromol. Chem., 177(10), 3077-81 (English) 1976. CODEN: MACEAK. 121-44-8 and 54649-10-4 which are cas registry numbers are also used here. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) Section cross-reference(s): 34, 73 ORD and CD spectra showed that I [61241-37-0] exists in a right-handed .alpha.-helical conformation in CH2Cl2 and that II [54668-77-8] exists in a left-handed .alpha.-helical conformation in the dry state. II was manufd by polymg. .gamma.-[9-carbazolyl)ethyl] L-glutamate N-carboxy anyhdride (III) [54649-10-4] in 1,2-C2H4Cl2 in the presence of Et3N; III was prepd. from L-glutamic acid [56-86-0] and 2-(9-carbazolyl)ethanol [1484-14-6] followed by anhydride formation. I was prepd. in an analogous manner. .

Synthesis of optically active photoresponsive multifunctional polymer containing the side-chain azocarbazole chromophore

All Rights Reserved.Some chemicals with cas registry numbers like 1484-14-6 and 7632-00-0 are also used. Synthesis of optically active photoresponsive multifunctional polymer containing the side-chain azocarbazole chromophore. Angiolini, Luigi; Benelli, Tiziana; Giorgini, Loris; Mauriello, Francesco; Salatelli, Elisabetta (Dipartimento di Chimica Industriale e dei Materiali and INSTM UdR-Bologna, University of Bologna, Bologna 40136, Italy). Macromolecular Chemistry and Physics, 207(20), 1805-1813 (English) 2006 Wiley-VCH Verlag GmbH & Co. KGaA. CODEN: MCHPES. ISSN: 1022-1352. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 36 A new optically active photochromic polymethacrylate contg. the carbazole moiety, deriving from the chiral monomer (S)-(4-cyanophenyl)-(3-{9-[2-(2-methacryloyloxypropanoyloxy)ethyl]carb azolyl})diazene [(S)-MLECA] has been prepd. and fully characterized with the aim to obtain a multifunctional deriv. possessing at the same time chem. moieties suitable to NLO and optical storage, to chiroptical switches, and to photorefractive and photoconductive applications. Spectroscopic, thermal and chiroptical characterizations clearly indicate the occurrence of dipolar interactions between chromophores and the presence of an ordered chiral conformation of one prevailing helical handedness, at least for chain segments of the macromols. .