✦ LIBER ✦

Synthetic and NMR spectroscopic studies on the 2,1,3-benzophosphadiazine ring system

✍ Scribed by Martin R. Bryce; Raymond S. Matthews

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 314 KB
Volume: 325
Category: Article
ISSN: 0022-328X
DOI: 10.1016/0022-328x(87)80396-0

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthetic studies on paraherquamide: syn

Synthetic studies on paraherquamide: synthesis of the 2H-1,5. Benzodioxepin ring system

✍ Robert M. Williams; Timothy D. Cushing 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 170 KB

Synthetic and spectroscopic study of 5-a

Synthetic and spectroscopic study of 5-amino-2-acyl-1,2,4-thiadiazolin-3-ones

✍ Do Young Ra; Nam Sook Cho; Jung Hyun Moon; Sung Kwon Kang 📂 Article 📅 1998 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 380 KB

## Abstract 5‐Amino‐2‐acyl‐1,2,4‐thiadiazolin‐3‐ones 2–1 can be synthesized from 5‐amino‐2__H__‐1,2,4‐thiadiazolin‐3‐one (1–1) __via__ a selective acylation with an acid anhydride in pyridine. The ^1^H nmr spectral characteristics of 5‐amino‐2‐acyl‐1,2,4‐thiadiazolin‐3‐ones 2–1 is in particular, co

Synthetic studies on asperparaline A.Syn

Synthetic studies on asperparaline A.Synthesis of the spirosuccinimide ring system

✍ Florenci Gonzalez; Juan F. Sanz-Cervera; Robert M. Williams 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 222 KB

A photooxygenation reaction of 2',2',4',4'-tetramethyl tetrahydroindole (9) followed by a pinacoltype rearrangement furnished 2',2 ',4',4'-tetramethyl-3-spirocydopentylsuccinimide (11). This transformation constitutes a model study for the synthesis of the spirosuccinimide ring system of asperparali

Synthetic studies on breviones: construc

Synthetic studies on breviones: construction of the CDE ring system

✍ Hirosato Takikawa; Manabu Hirooka; Mitsuru Sasaki 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 91 KB

Breviones A-E (1-5), allelopathic agents isolated from Penicillium brevicompactum Dierckx, are structurally unique pentacyclic or hexacyclic diterpenoid derivatives. The synthesis of a structurally simplified model compound (8), corresponding to the characteristic spiro-fused CDE ring portion of 1-4

Synthetic studies towards paraherquamide

Synthetic studies towards paraherquamide F: synthesis of the 1,7-dihydropyrano[2,3-g]indole ring system

✍ Rhona J. Cox; Robert M. Williams 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 110 KB

A substituted 1,7-dihydropyrano[2,3-g]indole suitable for elaboration to paraherquamide F has been prepared in eight steps and 6% overall yield. The key steps are a Fischer indolization and a Claisen rearrangement.

Synthetic studies on brevetoxin-B. Part

Synthetic studies on brevetoxin-B. Part 3: Stereoselective synthesis of the IJK-ring system

✍ Hiroko Matsukura; Nobuyuki Hori; Goh Matsuo; Tadashi Nakata 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 96 KB

The IJK-ring system of brevetoxin-B was stereoselectively synthesized based on the 6-endo-cyclizations of a hydroxy methylepoxide and a hydroxy styrylepoxide, and the direct introduction of the C-4 unit as the side chain.