Results 221 to 230 of about 13,716 (259)
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1968
Publisher Summary This chapter presents the review of organic and physical chemistry of monocyclic 1, 2, 5-thiadiazoles up to the early part of 1967. Reference is made to the 2, 1, 3-benzothiadiazoles and related compounds only as they contribute to the chemistry of the basic ring system. The 1, 2, 5-thiadiazole nucleus is numbered as in 4.
Leonard M. Weinstock, Peter I Pollak
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Publisher Summary This chapter presents the review of organic and physical chemistry of monocyclic 1, 2, 5-thiadiazoles up to the early part of 1967. Reference is made to the 2, 1, 3-benzothiadiazoles and related compounds only as they contribute to the chemistry of the basic ring system. The 1, 2, 5-thiadiazole nucleus is numbered as in 4.
Leonard M. Weinstock, Peter I Pollak
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Liquid crystalline thiadiazole derivatives: new ferroelectric thiadiazole derivatives
Liquid Crystals, 2002A series of optically active thiadiazole Schiff's bases were prepared and their liquid crystalline properties were studied. Chirality was achieved by introducing an asymmetric carbon atom into the alkoxy group. Thus, 2-(p -active-alkoxyphenyl-imine)-5-(p-n-alkoxy)phenyl-1,3,4-thiadiazoles were synthesized.
Huibiao Liu+5 more
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Thiazole and Thiadiazole S‐Oxides
ChemInform, 2002AbstractFor Abstract see ChemInform Abstract in Full Text.
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Journal of Molecular Spectroscopy, 1962
Abstract The microwave spectra of 1, 3, 4-thiadiazole (I) and [ 34 S] 1, 3, 4-thiadiazole (II) have been recorded in the 15,000–30,000 Mc/sec region. Twelve and ten transitions, respectively, were assigned. The rotational constants of (I) are, A = 8907.51 ± 0.10, B = 5569.27 ± 0.02, and C = 3424.80 ± 0.03 Mc/sec. For (II), A = 8908.15 ± 0.20,
Daniel H. Christensen+4 more
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Abstract The microwave spectra of 1, 3, 4-thiadiazole (I) and [ 34 S] 1, 3, 4-thiadiazole (II) have been recorded in the 15,000–30,000 Mc/sec region. Twelve and ten transitions, respectively, were assigned. The rotational constants of (I) are, A = 8907.51 ± 0.10, B = 5569.27 ± 0.02, and C = 3424.80 ± 0.03 Mc/sec. For (II), A = 8908.15 ± 0.20,
Daniel H. Christensen+4 more
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Thiadiazole inhibitors: a patent review
Expert Opinion on Therapeutic Patents, 2017Four isomeric structures of thiadiazole motifs have outstanding pharmacological inhibitory applications are reported in this review. Thiadiazole nucleus is present in several biologically active natural products and commercial drugs. Most of thiadiazoles reported herein are emphasized to have broad spectrum of medicinal activities.
Kamal M. Dawood, Thoraya A. Farghaly
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SOME HYPOGLYCEMIC THIADIAZOLES
Canadian Journal of Chemistry, 1959not available
Francis L. Chubb, Jacqueline Nissenbaum
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Thiadiazole-Derived Expanded Heteroazaporphyrinoids
Organic Letters, 2001[structure: see text] Heteroannulenes 1 and 3 containing three subunits of isoindole or pyrrole, respectively, three 1,3,4-thiadiazole moieties, and six aza-bridges have been synthesized by reaction of the corresponding diiminoisoindoline or diiminopyrroline with 2,5-diamino-1,3,4-thiadiazole.
Mikhail K. Islyaikin+4 more
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Alkynylated Aceno[2,1,3]thiadiazoles [PDF]
Enlarged acenothiadiazoles, which are easily prepared, display attractive optical and electrochemical properties. The annulation of thiadiazole to anthracene gives a stable material with optical properties similar to those of substituted pentacenes.
Nancy Berger+8 more
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Efficient Syntheses of Thiadiazole Peptides
The Journal of Organic Chemistry, 2010Novel N-(Cbz-aminoacyl)thiosemicarbazides 3a-c were cyclized by treatment with sulfuric acid to give 1,3,4-thiadiazoles 4a-c. Compounds 4a-c reacted with N-(Cbz-aminoacyl)- and -dipeptidoylbenzotriazoles to afford chirally pure 1,3,4-thiadiazol-2-yl-substituted amino acids 6a-c and dipeptides 7a-c.
Claudia El-Nachef+4 more
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