Side-chain alkylation of toluene by methanol over a basic zeolite: a kinetic study

1993 ◽  
Vol 32 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Paolo Beltrame ◽  
Paolo Fumagalli ◽  
Giovanni Zuretti
Keyword(s):  
Kinetic Study ◽  
Side Chain ◽  
Zeolite A

scholarly journals Photolysis of carboxymethylflavin in aqueous and organic solvent: a kinetic study

RSC Advances ◽  
2019 ◽  
Vol 9 (46) ◽  
pp. 26559-26571 ◽  
Author(s):  
Iqbal Ahmad ◽  
Tania Mirza ◽  
Syed Ghulam Musharraf ◽  
Zubair Anwar ◽  
Muhammad Ali Sheraz ◽  
...  
Keyword(s):  
Acid Solution ◽  
Organic Solvent ◽  
Kinetic Study ◽  
Alkaline Solution ◽  
Ring Cleavage ◽  
Side Chain ◽  
Keto Acid ◽  
Side Chain Cleavage ◽  
Chain Cleavage

Carboxymethylflavin (CMF) undergoes photolysis in acid solution to form lumichrome (LC) and in alkaline solution, LC and lumiflavin (LF) by side-chain cleavage and β-keto acid and a dioxoquinoxalaine (DQ) compound by isoalloxazine ring cleavage.

Kinetic Study of α-Chymotrypsin Catalysis with Regard to the Interaction between the Specificity-determining Site and the Aromatic Side Chain of Substrates12

1976 ◽  
Vol 80 (2) ◽  
pp. 239-251 ◽  
Author(s):  
Motonori OHNO ◽  
Shin-ichi SATO ◽  
Yuji KARASAKI ◽  
Sadaji TSUKAMOTO
Keyword(s):  
Kinetic Study ◽  
Side Chain ◽  
Aromatic Side Chain

Kinetic study of the transformation of zeolite A into zeolite P

Zeolites ◽  
1982 ◽  
Vol 2 (2) ◽  
pp. 135-142 ◽  
Author(s):  
Boris Subotić ◽  
Ivan Šmit ◽  
Olga Madžija ◽  
Lavoslav Sekovanić
Keyword(s):  
Kinetic Study ◽  
Zeolite A ◽  
Zeolite P

Isoamyl acetate preparation from reaction of vinyl acetate and Isoamyl alcohol catalyzed by H-ZSM-5 zeolite: a kinetic study

2020 ◽  
Vol 481 ◽  
pp. 100611 ◽  
Author(s):  
Pablo F. Corregidor ◽  
Delicia E. Acosta ◽  
Elio E. Gonzo ◽  
Hugo A. Destéfanis
Keyword(s):  
Kinetic Study ◽  
Vinyl Acetate ◽  
Isoamyl Alcohol ◽  
Isoamyl Acetate ◽  
Zeolite A

Photodegradation of formylmethylflavin by side–chain and isoalloxazine ring cleavage in alkaline solution: A kinetic study

2019 ◽  
Vol 374 ◽  
pp. 106-114 ◽  
Author(s):  
Iqbal Ahmad ◽  
Tania Mirza ◽  
Zubair Anwar ◽  
Sofia Ahmed ◽  
Muhammad Ali Sheraz ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Alkaline Solution ◽  
Ring Cleavage ◽  
Side Chain

scholarly journals SYNTHESIS OF CUMENE BY TRANSALKYLATION OVER MODIFIED BETA ZEOLITE: A KINETIC STUDY

2016 ◽  
Vol 33 (4) ◽  
pp. 957-967 ◽  
Author(s):  
R. Thakur ◽  
S. Barman ◽  
R. Kumar Gupta
Keyword(s):  
Kinetic Study ◽  
Beta Zeolite ◽  
Zeolite A

Toluene ethylation with ethanol over Ga-MFI zeolite: a kinetic study

1992 ◽  
Vol 31 (4) ◽  
pp. 1012-1016 ◽  
Author(s):  
Parimal A. Parikh ◽  
N. Subrahmanyam ◽  
Yajnavalkya S. Bhat ◽  
Anand B. Halgeri
Keyword(s):  
Kinetic Study ◽  
Zeolite A ◽  
Mfi Zeolite

KINETIC STUDIES ON THE ENZYMES CATALYSING THE CONVERSION OF 17α-HYDROXY-PROGESTERONE AND DEHYDROEPIANDROSTERONE TO ANDROSTENEDIONE IN THE HUMAN ADRENAL GLAND IN VITRO

1974 ◽  
Vol 60 (1) ◽  
pp. 27-35 ◽  
Author(s):  
JEAN YATES ◽  
N. DESHPANDE
Keyword(s):  
Adrenal Gland ◽  
Kinetic Study ◽  
Microsomal Fraction ◽  
Kinetic Studies ◽  
The Other ◽  
Side Chain ◽  
Adrenal Cell ◽  
Chain Cleavage ◽  
Hydroxy Progesterone

SUMMARY Factors controlling the synthesis of androstenedione in the human adrenal gland were investigated in a kinetic study of the enzymes catalysing the conversion of 17α-hydroxyprogesterone and dehydroepiandrosterone to the hormone. Both reactions are associated with the microsomal fraction of the adrenal cell. 17α-Hydroxyprogesterone is converted to androstenedione by a NADPH-dependent 17-desmolase whereas there is an obligatory requirement for NAD+ for the conversion of dehydroepiandrosterone to the hormone. None of the other cofactors investigated inhibited or enhanced the enzymic conversions. The side-chain cleavage of 17α-hydroxyprogesterone was competitively inhibited by the precursors of the substrate, pregnenolone, progesterone and 17α-hydroxypregnenolone. Other C19 or C18 compounds known to be synthesized by the human adrenal gland were found to be ineffective in modifying the enzyme action. The conversion of dehydroepiandrosterone to androstenedione was non-competitively inhibited by oestrone and oestradiol-17β. No C21 compounds were found to affect the reaction. 5α-Dihydrotestosterone (17β-hydroxy-5α-androstan-3-one) inhibited both enzymic conversions competitively but the inhibition constants observed were so high that it is unlikely that this finding has any relevance to the control of androstenedione synthesis in vitro.

Kinetic study of the photochemical side-chain chlorination of P-xylene

1965 ◽  
Vol 6 (44) ◽  
pp. 3909-3915 ◽  
Author(s):  
P. Beltrame ◽  
S. Carrà
Keyword(s):  
Kinetic Study ◽  
Side Chain
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