RESIST COMPOSITION, METHOD FOR FORMING RESIST PATTERN, POLYPHENOLIC COMPOUND FOR USE IN THE COMPOSITION, AND ALCOHOLIC COMPOUND THAT CAN BE DERIVED THEREFROM
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US20160145231A1
公开(公告)日:2016-05-26
A resist composition containing a compound represented by the general formula (1) or (2), a method for forming a resist pattern using the composition, a polyphenolic compound for use in the composition, and an alcoholic compound that can be derived therefrom are described.
The cyclocondensation of ureas, thioureas, guanidines, or sulfamides with an aldehyde or ketone and a suitable nucleophilic compound in accordance with the principle of "α-ureidoalkylation" or "vinylogous ureidoalkylation" leads to the formation of saturated or unsaturated mono- and polycyclic heterocycles. The rings may be separated or may be linked in the 1,2- or 1,3-position. Spiro compounds can also be formed. The 5-, 6-, 7-, and 8-membered rings accessible in this way can contain further hetero atoms such as, for example, O, S, N, or P. Synthesis possibilities, properties, substitution reactions, and rearrangement reactions of these heterocycles are described. 1. Definition and Mechanisms of Cyclocondensations according to the Principle of α-Ureidoalkylation and Vinylogous Ureidoalkylation 2. Cyclocondensations by α-Ureidoalkylation of H-Acidic Compounds 2.1. α-Ureidoalkylation of OH-Acidic Compounds 2.2. α-Ureidoalkylation of SH-Acidic Compounds 2.3. α-Ureidoalkylation of Primary Amines 2.4. α-Ureidoalkylation of Ureas, Thioureas, Guanidines, and Sulfamides 2.5. α-Ureidoalkylation of CH-Acidic Compounds 3. Cyclocondensations by α-Ureidoalkylation of Olefins and Other Unsaturated Compounds 4. Cyclocondensations by α-Ureidoalkylation of Nucleophilic Phosphorus Compounds 5. Cyclocondensations by Vinylogous Ureidoalkylation 6. Closing Comments
The investigation of the reactions of urea and its methyl derivatives with formaldehyde elucidated the formation pathway of 3,5-bis(methoxymethyl)perhydro-1,3,5-oxadiazin-4-one. 1) The addition of formaldehyde to urea became increasingly difficult according to the increase of the number of added formaldehyde molecules, probably because of the steric hindrance of the hydroxymethyl groups. 2) 3,5-Bis(methoxymethyl)perhydro-1,3,5-oxadiazin-4-one was concluded to be derived from urea via tris(hydroxymethyl)urea and 3-(hydroxymethyl)perhydro-1,3,5-oxadiazin-4-one but not via tetrakis(hydroxymethyl)urea or perhydro-1,3,5-oxadiazin-4-one.
Quantitative and qualitative<sup>1</sup>H, <sup>13</sup>C, and<sup>15</sup>N NMR spectroscopic investigation of the urea-formaldehyde resin synthesis
作者:Oliver Steinhof、Éléonore J. Kibrik、Günter Scherr、Hans Hasse
DOI:10.1002/mrc.4044
日期:2014.4
work contributes to its elucidation by presenting results from detailed NMR spectroscopic studies with different methods. Besides1H NMRand13C NMR,15N NMR spectroscopy is also applied.15N‐enriched urea was used for the investigations. A detailed NMR signal assignment and a model of the reaction network of the hydroxymethylation step of the synthesis are presented. Because of its higher spectral dispersion