Δ3-Dihydropyrans and tetrahydropyrans by reduction of pyrylium salts with sodium borohydride in acetic acid
作者:Teodor-Silviu Balaban、Alexandru T Balaban
DOI:10.1016/s0040-4039(00)95365-6
日期:1987.1
major reduction products with triacetoxyborohydride (NaBH4 in AcOH) of 2,4,6-trisubstituted pyrylium salts bearing alkyl substituents in the 2- and/or 6- position are the Δ3-dihydropyrans with 2- and 6- substituents and the all--2,4,6-trisubstituted tetrahydropyrans. Δ3-Dihydropyrans are shown to be formed 2H-pyrans by a 1,4 reduction while tetrahydropyrans result from 4H-pyrans by reduction of both
Photocurable Polymeric Materials and Related Electronic Devices
申请人:POLYERA CORPORATION
公开号:US20130200345A1
公开(公告)日:2013-08-08
Disclosed are photocurable polymers that can be used as active and/or passive organic materials in various electronic, optical, and optoelectronic devices. In some embodiments, the device can include a dielectric layer prepared from such photocurable polymers. In some embodiments, the device can include a passivation layer prepared from the polymers described herein.