Microwave‐Assisted Synthesis of 5‐Hydroxy‐5‐trichloromethyl‐4,5‐dihydroisoxazoles.

Martins, Marcos A. P.; Beck, Paulo; Cúnico, Wilson; Pereira, Cláudio M. P.; Sinhorin, Adilson P.; Blanco, Rogerio F.; Peres, Rodrigo L.; Bonacorso, Hélio G.; Zanatta, Nilo

doi:10.1002/chin.200250094

ChemInform

2002

DOI: 10.1002/chin.200250094

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Microwave‐Assisted Synthesis of 5‐Hydroxy‐5‐trichloromethyl‐4,5‐dihydroisoxazoles.

Marcos A. P. Martins

Paulo Beck

Wilson Cúnico

et al.

Abstract: Microwave-Assisted Synthesis of 5-Hydroxy-5-trichloromethyl-4,5dihydroisoxazoles.-The cyclocondensation of 4-alkoxy-1,1,1-trihalo-3-alken-2-ones (I) with hydroxylamine yielding dihydroisoxazoles (II) is remarkably accelerated by microwave irradiation. -(MARTINS, MARCOS A. P.; BECK, PAULO; CUNICO, WILSON; PEREIRA, CLAUDIO M. P.; SINHORIN, ADILSON P.; BLANCO, ROGERIO F.; PERES, RODRIGO; BONACORSO, HELIO G.; ZANATTA, NILO; Tetrahedron Lett. 43 (2002) 39, 7005-7008; Dep. Quim., Univ. Fed.

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Microwave irradiation in organic synthesis

Romanova¹,

Gravis²,

Зык³

2005

Russ. Chem. Rev.

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We present the first measurement of the correlation between the map of the cosmic microwave background (CMB) lensing potential derived from the Planck nominal mission data and  z 1.5 galaxies detected by the Herschel-ATLAS (H-ATLAS) survey covering about 600 deg 2 , i.e., about 1.4% of the sky. We reject the hypothesis that there is no correlation between CMB lensing and galaxy detection at a s 20 significance, checking the result by performing a number of null tests. The significance of the detection of the theoretically expected cross-correlation signal is found to be s 10 . The galaxy bias parameter, b, derived from a joint analysis of the cross-power spectrum and of the autopower spectrum of the galaxy density contrast is found to be = -+ b 2.80 0.11 0.12 , consistent with earlier estimates for H-ATLAS galaxies at similar redshifts. On the other hand, the amplitude of the cross-correlation is found to be a factor 1.62 ± 0.16 higher than expected from the standard model and also found by cross-correlation analyses with other tracers of the large-scale structure. The enhancement due to lensing magnification can account for only a fraction of the excess cross-correlation signal. We suggest that part of it may be due to an incomplete removal of the contamination of the cosmic infrared background, which includes the H-ATLAS sources we are cross-correlating with. In any case, the highly significant detection reported here using a catalog covering only 1.4% of the sky demonstrates the potential of CMB lensing correlations with submillimeter surveys.

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Microwave irradiation in organic synthesis

Romanova¹,

Gravis²,

Зык³

2005

Russ. Chem. Rev.

View full text Add to dashboard Cite

show abstract

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Microwave‐Assisted Synthesis of 5‐Hydroxy‐5‐trichloromethyl‐4,5‐dihydroisoxazoles.

Cited by 1 publication

References 1 publication

Microwave irradiation in organic synthesis

Microwave irradiation in organic synthesis

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