The deluge of sensors and data generating devices has driven a paradigm shift in modern computing from arithmeticlogic centric to data-centric processing. Data-centric processing require innovations at the device level to enable novel compute-inmemory (CIM) operations. A key challenge in the construction of CIM architectures is the conflicting trade-off between the performance and their flexibility for various essential data operations. Here, we present a transistor-free CIM architecture that permits storage, search, and neural network operations on sub-50 nm thick Aluminum Scandium Nitride ferroelectric diodes (FeDs). Our circuit designs and devices can be directly integrated on top of Silicon microprocessors in a scalable process. By leveraging the field-programmability, nonvolatility, and nonlinearity of FeDs, search operations are demonstrated with a cell footprint <0.12 μm 2 when projected onto 45 nm node technology. We further demonstrate neural network operations with 4-bit operation using FeDs. Our results highlight FeDs as candidates for efficient and multifunctional CIM platforms.
The 3-chloropyridazine moiety was immobilized on a Wang resin, using two different methodologies. The first of these involved direct nucleophilic substitution of 3,6-dichloropyridazine with the alcoholate of Wang resin. The experimental conditions were optimized. The second method involved a Mitsunobu reaction between the Wang resin and 6-chloropyridazin-3-ol during which a problem of regioselectivity was observed. The so-obtained chloropyridazine-containing resins were subsequently reacted with various arylboronic acids under Suzuki conditions. Acid cleavage yielded 6-arylpyridazin-3(2H)-ones with high chemical purity.
M5 4WT Whereas chromones are usually cleaved by amines, 3-(aryliminomethy1)chromones undergo nucleophilic addition with aromatic primary amines to give 2-amino-3-(arylaminomethylene)chroman-4-one derivatives. The 3-(aryliminomethyl) group also facilitates addition to the system of a variety of alcohols and thiols, and certain thiol adducts can be cyclised to thiazepine derivatives. The action of manganese dioxide on 3-(aryliminomethyl)chromones leads to 3-(arytaminomethylene)chroman-2,4-diones. CHROMONES are usually readily ring-opened via nucleophilic attack at the 2-positi0n.~ We have recently shown,3 however, that the presence of a 3-(aryliminomethyl) group alters the reactivity of the system towards 11 1' (21 a ; R1= R2= H a; R1 = R2 = H, R3 = C1 b; R1 = H, R2 = Me c ; R1 = Me, R2 = H b; R1 = R2 = H, R3 = OMe c; R1 = H, R2 = Me, R3 = OMe d; R1 = Me, R2 = H, R3 = C1
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