✦ LIBER ✦

Synthesis of [15]annulenone 4,7:10,13-dioxide derivatives and the demonstration of a diamagnetic ring current

✍ Scribed by Haru Ogawa; Nobuhiro Shimojo; Mitutaka Yoshida

Publisher: Elsevier Science
Year: 1971
Tongue: French
Weight: 208 KB
Volume: 12
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)96768-1

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The demonstration of a diamagnetic and p

The demonstration of a diamagnetic and paramagnetic ring current in fully unsaturated 15-membered cyclic systems

✍ Haru Ogawa; Masaharu Kubo; Haruo Saikachi 📂 Article 📅 1971 🏛 Elsevier Science 🌐 French ⚖ 209 KB

IF planarity can be affimmd in the fully unsaturated cycles of the type (I) and (II), pm spectra measured in these groups of ~compounds are expected to show a striking coetrastl, since (I) would be aromatic, exhibiting a diamgnetic ring current. provided n is 2, 4, 6\*\*., and antiammatic, if n is 3

Synthesis of [16]annulene 1,4:7,10-dioxi

Synthesis of [16]annulene 1,4:7,10-dioxide and the verification of an induced paramagnetic ring current

✍ Haru Ogawa; Masaharu Kubo; Iwao Tabushi 📂 Article 📅 1973 🏛 Elsevier Science 🌐 French ⚖ 242 KB

A simple new synthesis of macrocyclic de

A simple new synthesis of macrocyclic dehydroannulenones. 4,5:10,11-bis(tetramethylene)-6,8-bisdehydro[13]annulenone and 6,7:12,13-bis-(tetramethylene)-8,10-bisdehydro[17]annulenone

✍ P.D. Howes; E. LeGoff; F. Sondheimer 📂 Article 📅 1972 🏛 Elsevier Science 🌐 French ⚖ 168 KB

Higher homologues of cycloheptatriene, t

Higher homologues of cycloheptatriene, tropylium ion and oxepin : The demonstration of a diamagnetic and paramagnetic ring current in novel [15]annulene systems

✍ H. Ogawa; M. Kubo 📂 Article 📅 1973 🏛 Elsevier Science 🌐 French ⚖ 498 KB

ChemInform Abstract: Synthesis of Dibenz

ChemInform Abstract: Synthesis of Dibenzo Derivatives of (4-Oxotetrahydropyrano)oxa-14-crown-4 (III) and 1,4,7-Trioxacyclohexadeca-8,10,13,15-tetraen-12-one (V). Transformation of the Latter into (4-Oxopiperidino)aza-14-crown-4 (VII).

✍ Le Tuan An'; A. N. Levonv; A. T. Soldatenkov; R. D. Gruzdev; Chyong Khong Khieu 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 28 KB

ChemInform Abstract: Synthesis of Novel

ChemInform Abstract: Synthesis of Novel Octahydro-1,5-imino-3-benzazocin-4,7,10-trione Derivatives Having a Methyl Group at the C-2 Position as ABC Ring Models of Saframycins.

✍ N. SAITO; M. TANITSU; T. BETSUI; R. SUZUKI; A. KUBO 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 40 KB 👁 1 views

Synthesis of Novel Octahydro-1,5-imino-3-benzazocin-4,7,10-trione Derivatives Having a Methyl Group at the C-2 Position as ABC Ring Models of Saframycins. -Simple and efficient syntheses of (Z)-3-benzylidenepiperazinedione ( VII) in both racemic and optically active forms are described. Compound (V