Cheap and air-stable boric acid is shown to be a good precatalyst for BH3 hydroboration of esters and carbonates.

Halodiazirines emerged as very useful reagents in photochemically- or thermally-mediated cyclopropanation reactions with alkenes. This Short review highlights the synthetic applications of these reagents as precursors of halocarbenes with various alkenes.

Roll to roll (R2R) manufacturing process, also known as 'web processing', has been tried for producing electronic devices on a flexible plastic or metal foil. To increase the performance and productivity the R2R process, effective control and on-line supervision for web quality becomes very important. Wrinkle is one of the defects, which is incurred due to compressive stresses. A system for on-line measurement of wrinkle is developed using area scan camera and machine vision laser. The 2D image, obtained by area scan camera, is produced by Gaussian regression method to characterize the wrinkle on a transparent web. The experiment proves that 0.3mm wrinkle height can be measured successfully with 74fps.