Robust PIN photodiode with a guard ring protection structure

A new planar-structure InAlGaAs-InAlAs s

A new planar-structure InAlGaAs-InAlAs superlattice avalanche photodiode with a Ti-implanted guard-ring

✍ Watanabe, I.; Tsuji, M.; Makita, K.; Taguchi, K. 📂 Article 📅 1996 🏛 IEEE 🌐 English ⚖ 300 KB

Novel Concepts in Directed Biaryl Synthe

Novel Concepts in Directed Biaryl Synthesis, XXXVIII. Synthesis and Structure of a Protected Lactolate-Bridged Biaryl with Relevance to the Atropisomer-Selective Ring Opening of Biaryl Lactones

✍ Bringmann, Gerhard ;Schöner, Bernd ;Peters, Karl ;Peters, Eva-Maria ;von Schneri 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 544 KB

## Abstract The preparation and crystal structure of the __O__‐methyl‐protected analog 5 of a lactolate‐type intermediate 3 in the atropisomer‐selective ring opening of configuratively unstable lactone‐bridged biaryls 1 is described. Thus, 5a could be prepared by oxidation of the cyclic ether 7a to