Detail of "702-98-7"

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CAS Number:
702-98-7
Name:
2-Methyl-2-adamantanol
Molecular Structure:
Formula:
C₁₁H₁₈O
Molecular Weight:
166.26 .
Synonyms:
Tricyclo[3.3.1.13,7]decan-2-ol, 2-methyl-;2-methyladamantan-2-ol;2-Adamantanol, 2-methyl-;
Density:
1.073 g/cm³
Melting Point:
214-218 °C
Boiling Point:
253.7 °C at 760 mmHg
Flash Point:
104.8 °C
Solubility:
insoluble in water
Appearance:
white crystalline powder
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
24/25-36-26 Details

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Reference

Photoresist polymer and photoresist composition containing the same: Photoresist polymer and photoresist composition containing the same. Lee, Geun Su (S. Korea ). U.Chemicals with cas numbers 7719-09-7 and 702-98-7 also play role.S. Pat. Appl. Publ. US 2004265735 A1 30 Dec 2004,9 pp. (English). (United States of America). CODEN: USXXCO. CLASS: ICM: G03C001-76. NCL: 430270100. APPLICATION: US 2003-718959 21 Nov 2003. PRIORITY: KR 2003-42561 27 Jun 2003. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 35, 38 Photoresist polymers and photoresist compns. are disclosed. A photoresist polymer represented by Formula I (X1,2 =CH2, CH2CH2, O, S; R1 = acid labile protecting group, C1-20 alkyl, cycloalkyl; R2 = H, C1-20 alkyl, C5-10 cycloalkyl, etc.; m = 0-2; n = 0,1; the relative ratio of a:b:c is in range of 50 mol %: 20-50 mol %: 0-30 mol %) and a photoresist compn. contg. the same have excellent etching resistance, thermal resistance and adhesive property, and high affinity to an developing soln., thereby improving LER (line edge roughness). .

Conformational analysis of tertiary cycloalkyl (C6, C7, C8) carbocations: Conformational analysis of tertiary cycloalkyl (C6, C7, C8) carbocations. Unexpected preference for the twist-boat conformation in the cyclohexyl case. Kirchen, Roger P.; Sorensen, Ted S. (Dep. Chem., Univ. Calgary, Calgary, Alberta, Can.). J. Am. Chem. Soc., 100(5), 1487-94 (English) 1978. CODEN: JACSAT. ISSN: 0002-7863. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) In carbocations, chair conformations appear to be much less stable than in neutral org. analogs. 702-98-7 is the cas registry number. This chemical is also mentioned in this article. Thus, tertiary cyclohexyl cations have a twist-boat ground state which is 500 cal/mol more stable than the chair conformation. The equil. const., twist-boat-chair, is slightly solvent-dependent, increasing in nonpolar and decreasing in more polar solvents. The tertiary cycloheptyl cation is a fluxionally mobile mol. but the methylcyclooctyl cation has an unsym. chair-twist-boat conformation in which the pseudorotational motion can be frozen out at low temps. The reported 2-methylbicyclo[3.2.1]oct-2-yl cation is instead the 2-methylbicyclo[2.2.Several substances are used for example 702-98-7 which is its cas registry number.2]oct-2-yl cation. At very low temps., the former cation can be made, but it was not possible to assign a conformation to the 6-membered ring. The 9-methylbicyclo[3.3.1]non-9-yl cation is postulated to have a chair-boat conformation in contrast to the dichair conformation obsd. in neutral compds. Attempts. to prep. the observable 2-methyl-2-twistyl cation were unsuccessful. ..

Detail of "702-98-7"

2-Methyl-2-adamantanol

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