- THIOPHOSPHATE AND PHOSPHINE SULFIDE DERIVATIZED MONOMERS AND POLYMERS FOR VOLUME BRAGG GRATINGS
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The disclosure provides recording materials including thiophosphate derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures are disclosed for
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Paragraph 0353; 0354
(2021/05/29)
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- AROMATIC SUBSTITUTED ALKANE-CORE MONOMERS AND POLYMERS THEREOF FOR VOLUME BRAGG GRATINGS
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The disclosure provides recording materials including aromatic substituted alkane-core derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures
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Paragraph 0385-0386
(2021/05/29)
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- HOLOGRAPHIC RECORDING MATERIALS AND METHODS OF MAKING THE SAME
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Provided herein are compositions suitable for recording holograms containing thiol and/or thioether functionality, and optionally including additional allyl and/or propargyl functional groups. These monomers can be used to synthesize holographic polymers having high Δn values. Also provided herein are methods of making holographic polymers and methods recording holograms using these polymers.
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Page/Page column 31-32
(2021/12/31)
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- HIGH DYNAMIC RANGE TWO-STAGE PHOTOPOLYMERS
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The present invention, in one aspect, relates to monomers and photopolymers that exhibit a high refractive index. The photopolymers of the invention have properties suitable for fabricating holographic optical elements (HOEs).
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Page/Page column 20
(2019/12/28)
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- Selective synthesis of 4-thiomethyl-1,3-dioxolan-2-ones under microwave irradiation using an environmentally benign KF/Al2O3/PEG-400 system
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We describe a simple and rapid method for selective synthesis of 4-thiomethyl-1,3-dioxolan-2-ones promoted by KF/Al2O3 using PEG-400 as solvent under microwave irradiation. The protocol employs 3-O-tosyl glycerol 1,2-carbonate 1 and
- Perin, Gelson,Silva, Cristian M.,Borges, Elton L.,Duarte, José E. G.,Goulart, Helen A.,Silva, Rafaela B.,Schumacher, Ricardo F.
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p. 5873 - 5885
(2016/06/01)
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- Discovery, synthesis, and biological evaluation of piperidinol analogs with anti-tuberculosis activity
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Direct anti-tuberculosis screening of commercially available compound libraries identified a novel piperidinol with interesting anti-tuberculosis activity and drug like characteristics. To generate a structure activity relationship about this hit a 22 mem
- Sun, Dianqing,Scherman, Michael S.,Jones, Victoria,Hurdle, Julian G.,Woolhiser, Lisa K.,Knudson, Susan E.,Lenaerts, Anne J.,Slayden, Richard A.,McNeil, Michael R.,Lee, Richard E.
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experimental part
p. 3588 - 3594
(2009/10/10)
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- One-pot synthesis of β-amino/β-hydroxy selenides and sulfides from aziridines and epoxides
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Diaryl disulfides and diselenides undergo facile cleavage on treatment with rongalite (sodium hydroxymethanesulfinate) to generate the corresponding thiolate and selenolate species in situ, which effect the ring opening of aziridines and epoxides in a reg
- Ganesh, Venkataraman,Chandrasekaran, Srinivasan
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experimental part
p. 3267 - 3278
(2010/02/27)
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- POLYMER COMPOSITION HAVING A HIGH REFRACTIVE INDEX
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Described is the use of polymers with a high refractive index for ophthalmic products and a process for the production thereof.
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- HIGH REFRACTIVE INDEX MONOMERS AND (CO)POLYMERS PREPARED THEREFROM
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The present invention relates to high refractive index monomers according to formula (I) and (co)polymers comprising such high refractive index monomers. The 5 (co)polymers are highly suitable for the manufacture of optical articles, in particular flexibl
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Page/Page column 14
(2008/06/13)
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- Facile synthesis of vinyl sulfones from β-bromo alcohols
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Vinyl sulfones are synthesized in good yields by dehydration of β- hydroxy sulfones derived from β-bromo alcohols.
- Lee, Jae Wook,Lee, Chi-Wan,Jung, Jin Hang,Oh, Dong Young
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p. 2897 - 2902
(2007/10/03)
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- Synthesis of Functionally Substituted α,β-Unsaturated Carbonyl Compounds
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Epichlorohydrin and glycidol are transformed in a four step sequence into β-dimethylamino-α-phenylthio-substituted α,β-unsaturated carbonyl compounds 5, possessing differently O-protected oxymethyl substituents at the carbonyl group.These compounds are of
- Apparao, Satyam,Schmidt, Richard R.
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p. 896 - 899
(2007/10/02)
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- A New and Convenient Synthetic Method for Cyclopropyl Phenyl Sulfides
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The reactions of a variety of 1,3-bis(phenylthio)propanes with butyllithium have been shown to produce cyclopropyl phenyl sulfides in good to high yields.A new and convenient in situ preparation of 1-lithiocyclopropyl phenyl sulfide can be readily carried out by treating 1,3-bis(phenylthio)propane with 2 equiv. of butyllithium at 0 degC in THF.The reaction with electrophiles proceeds in good yield.O-Aryl and O-alkyl S-cyclopropyl dithiocarbonates also can be prepared in good yields. 1,2-Bis(phenylthio)ethane was converted to phenyl vinyl sulfide on treatment with butyllithium, while 1,4-bis(phenylthio)butane was recovered unchanged by a similar treatment.
- Tanaka, Kazuhiko,Uneme, Hideki,Matsui, Shuichi,Kaji, Aritsune
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p. 2965 - 2972
(2007/10/02)
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- β-(Trimethylsilyl)ethoxymethyl chloride. A new reagent for the protection of the hydroxyl group
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Reactions of β-(trimethylsilyl)ethoxymethyl chloride with alcohols afford the corresponding ethers in high yield. Deprotection using n-Bu4NF in THF or HMPA cleanly regenerates the hydroxyl function.
- Lipshutz, Bruce H.,Pegram, Joseph J.
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p. 3343 - 3346
(2007/10/02)
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- Hypocholesterolemic activity of 1,3 bis(substituted phenoxy) 2 propanones
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A series of 1,3 bis (substituted phenoxy) 2 propanones was found to be active hypocholesterolemic agents at 10 mg/kg/day. The p chloro and p methyl substituted phenoxy compounds possess the highest activity. These compounds did not possess the estrogenic and antifertility activities of the related previously reported derivatives of the bis (β phenylethyl) ketone series. The 1,3 bis (p methylphenoxy) 2 propanone (7) also lowered serum triglycerides and glycerol which appeared to be due to increased levels of serum lipase and reduced activity of liver lipase. There was reduced incorporation of free fatty acids into complex lipids by the liver. Cholesterol was excreted faster in the treated animals.
- Piantadosi,Hall,Wyrick,Ishaq
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p. 222 - 229
(2007/10/12)
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