Rhodium(<scp>iii</scp>)-catalyzed indole synthesis at room temperature using the transient oxidizing directing group strategy
作者:Yaping Shang、Krishna Jonnada、Subhash Laxman Yedage、Hua Tu、Xiaofeng Zhang、Xin Lou、Shijun Huang、Weiping Su
DOI:10.1039/c9cc04529e
日期:——
temperature have been developed using an in situ generated N-nitroso group as a transient oxidizing directinggroup. Due to mild reaction conditions, this method enabled synthesis of a broad range of N-alkyl indoles, including even two indole-based medicinal compounds. Our work disclosed the feasibility of the transient oxidizing directinggroup strategy in C–H functionalization reactions, which possesses
N-Nitrosation of secondary amines was accomplished in an efficient manner using tert-butyl nitrite undersolvent, metal and acid freeconditions.
使用亚硝酸叔丁酯在无溶剂,无金属和无酸的条件下以高效的方式完成仲胺的N-亚硝基化反应。
Rh(III)-Catalyzed C–H Annulation of <i>N</i>-Nitrosoanilines with Iodonium Ylides for the Synthesis of <i>N</i>-Alkyl Indoles
作者:Chaoshui Liu、Qiuzi Dai、Yaqian Li、Chuhan Huang、Lijuan Guo、Zi Yang
DOI:10.1021/acs.joc.3c00517
日期:2023.6.2
A novel protocol for synthesizing N-alkyl indoles from readily available N-nitrosoanilines and iodonium ylides through the rhodium(III)-catalyzed C–H bond activation/intramolecular cyclization reaction has been described. This strategy employs nitroso as a traceless directing group. The transformation features powerful reactivity, tolerates various functional groups, and proceeds with moderate yields
NOVEL PHOTOSENSITIVE RESIN BASED ON SAPONIFIED POLYVINYL ACETATE, PHOTOSENSITIVE RESIN COMPOSITION, METHOD OF FORMING AQUEOUS GEL FROM THE SAME, AND COMPOUND
申请人:Toyo Gosei Co., Ltd.
公开号:EP1574528A1
公开(公告)日:2005-09-14
The invention provides a photosensitive resin which is a material exhibiting excellent storage stability, affinity, miscibility, or solubility with respect to a variety of compounds, and high sensitivity and being solidified even under hydrous conditions as well as exhibiting high cure-related sensitivity and high flexibility and being uniformly solidified even under highly hydrous conditions, a photosensitive resin composition containing the resin, and a novel compound.
The photosensitive resin is a saponified poly(vinyl acetate)-based photosensitive resin having a structural unit represented by formula (1) :
(wherein R1 represents H or Me; R2 represents a linear or branched C2-C10 alkylene group; n is an integer of 1 to 3; X represents
m is an integer of 0 to 6; and Y represents an aromatic ring or a single bond).
Novel photosensitive resin based on saponified polyvinyl acetate photosensitive resin composition, method of forming aqueous gel from the same, and compound
申请人:Yamada Seigo
公开号:US20060148925A1
公开(公告)日:2006-07-06
A photosensitive resin which exhibits excellent storage stability, affinity, miscibility, or solubility with respect to a variety of compounds, and high sensitivity can be solidified even under hydrous conditions as well as exhibiting high cure-related sensitivity and high flexibility and being uniformly solidified even under highly hydrous conditions, a photosensitive resin composition containing the resin, and a novel compound.
The photosensitive resin is a saponified poly(vinyl acetate)-based photosensitive resin having a structural unit represented by formula (1):
(wherein R
1
represents H or Me; R
2
represents a linear or branched C2-C10 alkylene group; n is an integer of 1 to 3; X represents
m is an integer of 0 to 6; and Y represents an aromatic ring or a single bond).
一种贮存稳定性、亲和性、与多种化合物的混溶性或溶解性极佳且灵敏度高的光敏树脂,即使在含水条件下也能固化,同时还具有高固化灵敏度和高柔韧性,即使在高含水条件下也能均匀固化;一种含有该树脂的光敏树脂组合物;以及一种新型化合物。
光敏树脂是一种皂化聚(醋酸乙烯酯)基光敏树脂,其结构单元由式(1)表示:
(其中 R
1
代表 H 或 Me;R
2
代表直链或支链 C2-C10 烯基;n 是 1 至 3 的整数;X 代表
m 是 0 至 6 的整数;Y 代表芳香环或单键)。