Tag: M.W=200-250

Kohlrausch, K. W. F. published the artcileRaman effect. CXVIII. 10. Dihaloethanes, Category: bromides-buliding-blocks, the publication is Z. physik. Chem. (1940), 55-65, database is CAplus.

New data, including some polarization measurements, have been obtained for 1,2-dichloro-, dibromo-, chlorobromo- and chloroiodoethane. The results are compared with previous vibrational Raman spectra on these compounds The presence of both cis and trans forms is indicated by the chain and CH-vibrational frequencies.

Z. physik. Chem. published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C6H12Br2, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Lenstra, Danny C. published the artcileCatalytic Staudinger Reduction at Room Temperature, Application of (4-Bromo-2-fluorophenyl)methanamine hydrochloride, the publication is Journal of Organic Chemistry (2019), 84(10), 6536-6545, database is CAplus and MEDLINE.

We report an efficient catalytic Staudinger reduction at room temperature that enables the preparation of a structurally diverse set of amines from azides in excellent yields. The reaction is based on the use of catalytic amounts of triphenylphosphine as a phosphine source and diphenyldisiloxane as a reducing agent. Our catalytic Staudinger reduction exhibits a high chemoselectivity, as exemplified by reduction of azides over other common functionalities, including nitriles, alkenes, alkynes, esters, and ketones.

Journal of Organic Chemistry published new progress about 147181-08-6. 147181-08-6 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Salt,Amine,Benzene, name is (4-Bromo-2-fluorophenyl)methanamine hydrochloride, and the molecular formula is C7H8BrClFN, Application of (4-Bromo-2-fluorophenyl)methanamine hydrochloride.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Lo, Ping Hsun published the artcileThe effect of C_X (alkyl groups) on the migration insertion polymerization (MIP) of ^PFpC_X [^PFp = (PPh₂(CH₂)₃Cp)Fe(CO)₂], Recommanded Product: 1-Bromododecane, the publication is Polymer (2022), 124574, database is CAplus.

Migration insertion polymerization (MIP) of organometallic monomers, ^PFpC_X [^PFp = (PPh₂(CH₂)₃Cp)Fe(CO)₂, C_X = (CH₂)_X-1CH₃, X = 12 or 18] was performed under various conditions. The oligomerization occurred in accompany with the monomer cyclization generating ^PFpC_X small rings at the early stage, which was followed by a complete cyclization of the oligomers generating P(^PFpC_X)_n macrocycles. ^PFpC_X small rings could be completely removed via precipitating the crude products in a poor solvent for the macrocycles. The solution and bulk MIP of ^PFpC_X (X = 12 or 18) had a similar cyclization rate but both were significantly accelerated at a higher MIP temperature (100°C). It is explained by the temperature-dependent tendency for the cyclization. The dependence of d.p. (DP) on the MIP conditions was discussed and the self-assembly of resultant P(^PFpC₁₂)_n was examined

Polymer published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Recommanded Product: 1-Bromododecane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sokolsky, Alexander published the artcileSpirastrellolide E: synthesis of an advanced C(1)-C(24) southern hemisphere, Formula: C7H13BrSi, the publication is Tetrahedron Letters (2015), 56(23), 3160-3164, database is CAplus and MEDLINE.

The synthesis of a C(1)-C(24) advanced southern hemisphere fragment (I) towards the total synthesis of spirastrellolide E has been achieved. Highlights of the route include a highly convergent Type I Anion Relay Chem. (ARC) tactic for fragment assembly, in conjunction with a directed, regioselective gold-catalyzed alkyne functionalization to generate the central unsaturated [6,6]-spiroketal.

Tetrahedron Letters published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C5H9IO2, Formula: C7H13BrSi.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Qu, Yongzheng published the artcileAsymmetric Total Synthesis of (+)-Waihoensene, Quality Control of 69361-41-7, the publication is Journal of the American Chemical Society (2020), 142(14), 6511-6515, database is CAplus and MEDLINE.

The asym. total synthesis of (+)-waihoensene (I), which has a cis-fused [6,5,5,5] tetracyclic core bearing an angular triquinane, a cis-fused six-membered ring, and four contiguous quaternary carbon atoms, was achieved through a sequence of chem. reactions in a stereochem. well-defined manner. The total synthesis features the following: (1) Cu-catalyzed asym. conjugated 1,4-addition; (2) diastereoselective Conia-ene type reaction; (3) diastereoselective intramol. Pauson-Khand reaction; (4) Ni-catalyzed diastereoselective conjugated 1,4-addition; and (5) radical-initiated intramol. hydrogen atom transfer (HAT). Control experiments and d. functional theory calculations support the proposed HAT process.

Journal of the American Chemical Society published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Quality Control of 69361-41-7.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Bao, Yinwei published the artcilePalladium-catalyzed tandem cyclization of fluorinated imidoyl chlorides with 2-bromophenylboronic acid: synthesis of 6-fluoroalkyl-phenanthridines, Synthetic Route of 89694-44-0, the publication is Tetrahedron (2019), 75(10), 1450-1456, database is CAplus.

An efficient method was developed to synthesize 6-fluoroalkyl-phenanthridines I [R = CF₃, C₂F₅, CF₂Cl; R¹ = H, 8-MeO, 8-CF₃; R² = H, 2-F, 4-Cl, etc.] via the palladium-catalyzed tandem cyclization of fluorinated imidoyl chlorides with 2-bromophenylboronic acid. This methodol. facilitated the rapid synthesis of 6-fluoroalkyl-phenanthridines I through dual C-C bond formation in an oxidant-free one-pot manner.

Tetrahedron published new progress about 89694-44-0. 89694-44-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 2-Bromo-5-methoxybenzene boronic acid, and the molecular formula is C7H8BBrO3, Synthetic Route of 89694-44-0.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Hellenbrand, Tim published the artcileConjugate addition of organomagnesium cuprates to guvacine derivatives, Recommanded Product: (4-Bromobut-1-yn-1-yl)trimethylsilane, the publication is European Journal of Organic Chemistry (2014), 2014(20), 4398-4409, database is CAplus.

The synthesis of 4-substituted piperidine-3-carboxylates was achieved by conjugate addition of organomagnesium cuprates to N-Me and N-tert-butoxycarbonyl guvacine derivatives Good to excellent yields were obtained with primary Grignard reagents containing alkyl, alkenyl, alkynyl, or masked aldehyde groups in a copper(I)-trimethylsilylacetylide-catalyzed and Me₃SiCl-mediated procedure.

European Journal of Organic Chemistry published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Recommanded Product: (4-Bromobut-1-yn-1-yl)trimethylsilane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhao, Mengyu published the artcileConverting thermally activated delayed fluorescence into hybridized local and charge-transfer via an addition acceptor moiety, COA of Formula: C12H25Br, the publication is Organic Electronics (2022), 106365, database is CAplus.

High-efficiency blue materials for Organic Light Emitting Diodes (OLEDs) are challenging but urgently needed, especially for solution-processed devices. Herein, based on a model compound of acridine-benzophenone, two blue materials were designed and synthesized, with the addnl. electron-withdrawing groups benzophenone and pentafluorobenzophenone connected to the acridine donor resp. to prepare BC and BC5F. The solution-processed OLED based on BC showed an emission peak at 486 nm, while the device with BC5F showed the electroluminescent peak at 478 nm. BC featured the thermally active delayed fluorescent (TADF) properties, but BC5F exhibited hybridized local and charge-transferring (HLCT) characteristics. This work showed that linking addnl. acceptors to the donor side could not only achieve deeper blue emission but also change the luminescent mechanism. Therefore, we provided a new strategy to manipulate the transition between TADF and HLCT.

Organic Electronics published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C5H9IO2, COA of Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Bernstein, A. published the artcileSynthesis and stability of triorganostannylalkylsulfonic acids, Recommanded Product: Sodium 3-bromopropane-1-sulfonate, the publication is Zeitschrift fuer Anorganische und Allgemeine Chemie (1991), 41-7, database is CAplus.

Sodium triorganostannylalkylsulfonates R₃Sn(CH₂)_nSO₃Na (I, R = Me, Ph, n = 2,3) are obtained by reaction of triorganostannylsodium with sodium haloalkylsulfonates or propane solution in liquid ammonia. I can be converted by ion-exchange in the free sulfonic acids R₃Sn(CH₂)_nSO₃H which are of limited stability and undergo cyclocondensation reactions with formation of the cyclic triorganotin alkanesulfonates II (R = Me, Ph, n = 1, 2).

Zeitschrift fuer Anorganische und Allgemeine Chemie published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, Recommanded Product: Sodium 3-bromopropane-1-sulfonate.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Bhaumik, Jayeeta published the artcileSynthesis and Photophysical Properties of Sulfonamidophenyl Porphyrins as Models for Activatable Photosensitizers, HPLC of Formula: 55788-44-8, the publication is Journal of Organic Chemistry (2009), 74(16), 5894-5901, database is CAplus and MEDLINE.

2,4-Dinitrophenylsulfonamido-substituted tetraphenylporphyrins with varying polarities or with functionality to allow conjugation to biomols. are prepared The fluorescence quantum yields of the dinitrophenylsulfonamido-substituted tetraphenylporphyrins and their parent amino-substituted tetraphenylporphyrins are determined; the kinetics of the cleavage of the dinitrophenylsulfonyl groups by small mol. thiols and the chemoselectivity of cleavage are also determined

Journal of Organic Chemistry published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, HPLC of Formula: 55788-44-8.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary