Unprecedented Chemistry of an Aryloxychlorodiazirine: Generation of a Dihalodiazirine and Diazirinone
摘要:
The reaction of p-nitrophenoxychlorodiazirine with tetrabutylammonium fluoride follows three channels: (1) approximately 17% of p-nitrophenoxide/fluoride exchange to chlorofluorodiazirine and p-nitrophenol, (2) approximately 28% of Cl/F exchange to p-nitrophenoxyfluorodiazirine, and (3) approximately 55% of ipso fluoride attack, affording p-nitrofluorobenzene and the previously unknown diazirinone (diazacyclopropenone).
NOVEL NITRILE AND AMIDOXIME COMPOUNDS AND METHODS OF PREPARATION
申请人:Lee Wai Mun
公开号:US20090111965A1
公开(公告)日:2009-04-30
The present application relates to semiconductor processing compositions comprising at least one compound containing at least one amidoxime functional group and to methods of using these compositions in semiconductor processing. The present application also describes the preparation of amidoximes for a semiconductor processing composition by (a) mixing a cyanoethylation catalyst, a nucleophile and an alpha-unsaturated nitrile to produce a cyanoethylation product; and (b) converting a cyano group in the cyanoethylation product into an amidoxime functional group.
Compositions and Methods for Controlling Nematodes
申请人:Slomczynska Urszula
公开号:US20100210849A1
公开(公告)日:2010-08-19
Compositions and processes for controlling nematodes are described herein, e.g., nematodes that infest plants or animals. The compounds include oxazoles, oxadiazoles and thiadiazoles.
Carbamoylierungs- und Cyclisierungsreaktionen anN-Hydroxyisoharnstoffen
作者:Michael Neitzel、Gerwalt Zinner
DOI:10.1002/ardp.19813140104
日期:——
Phenylisocyanat an der HO‐Gruppe auf und bilden die O‐Carbamoylverbindungen 4. Diese können zum Δ2‐1,2,4‐Oxadiazolin‐5‐on (5a), zu 3‐Imino‐1,2,4‐oxadiazolidin‐5‐onen 5b–5e oder zum Δ3‐1,2,4‐Oxadiazolin‐5‐on (9dB) cyclisieren. Die aus 5b–5e hergestellten Hydrochloride 6b–6e sind zu den 1,2,4‐Oxadiazolidin‐3,5‐dionen 7b–7e verseifbar. Die IR‐ und MS‐Daten von 4, 5, 6 und 7 werden diskutiert.
N - 羟基异脲 1 在 H O 基团上吸收苯基异氰酸酯并形成 O - 氨基甲酰基化合物 4。这些可以导致 Δ2-1,2,4-恶二唑啉 - 5-one (5a), 到 3 - 亚氨基 - 1,2 ,4 -Oxadiazolidin-5-ones 5b – 5e 或环化为 Δ3-1,2,4-oxadiazolidin-5-one (9dB)。由5b-5e制备的盐酸盐6b-6e可皂化得到1,2,4-恶二唑烷-3,5-二酮7b-7e。讨论了 4、5、6 和 7 的 IR 和 MS 数据。
Grigat,E. et al., Chemische Berichte, 1965, vol. 98, p. 144 - 154