Volume 15; Issue 2

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Heterocycles
Volume 15; Issue 2

Heterocycles

Volume 15; Issue 2

1

Acylation of Acyclic Enamines with an Excessive Amount of Pyridinecarbonyl Chlorides

Ninomiya, Ichiya, Naito, Takeaki

Journal:

Year:

1981

Language:

english

File:

PDF, 98 KB

english, 1981

2

A Convenient Synthesis of b-(1-lmidazolyl)enones from a,b-Dibromoketones

Kashima, Choji, Kashima, C., Shimizu, M., Tajima, T.

Journal:

Year:

1981

Language:

english

File:

PDF, 67 KB

english, 1981

3

Oxidation of Aporphines by Triplet Benzophenone

Castedo, Luis, Iglesias, Teresa, Puga, Alberto, Suau, Rafael, M. Saá, José

Journal:

Year:

1981

Language:

english

File:

PDF, 94 KB

english, 1981

4

The Synthesis of Regiospecifically 13C-Labeled a-Tocopheryl Acetate

Kajiwara, Masahiro, Sakamoto, O., Katsura, H., Ohta, S.

Journal:

Year:

1981

Language:

english

File:

PDF, 68 KB

english, 1981

5

Indole Alkaloid Biosynthesis

Ian Scott, A., Lee, Siu-Leung, G. Culver, Michael, Wan, Winnie, Hirata, Toshifumi, L. Baxter, Rober, A. Dorschel, Craig, Mizukami, Hajime, E. Mackenzie, Neil, Guéritte, Francoise, Nordlöv, Hans

Journal:

Year:

1981

Language:

english

File:

PDF, 361 KB

english, 1981

6

Lithiation of Some 3[2-(2'-Bromophenyl)ethyl]thiophenes and Intramolecular Transmetalation

Gronowitz, Salo, Stenhammar, Karin, Svensson, Leif

Journal:

Year:

1981

Language:

english

File:

PDF, 349 KB

english, 1981

7

Thermal Decomposition of 1,3-Dipolar Cycloadducts of Pyridazine N-Acetylimines and Tetrachlorocyclopropene

Igeta, Hiroshi, Ohsawa, Akio, Wada, Ikuo

Journal:

Year:

1981

Language:

english

File:

PDF, 84 KB

english, 1981

8

A Novel Synthesis of Pyrroles by the Reactions of Tris(alkylthio)cyclopropenium Salt with Amines

Yoshida, Zen-ichi, Yoneda, Shigeo, Hirai, Hideo

Journal:

Year:

1981

Language:

english

File:

PDF, 99 KB

english, 1981

9

Antimicrobial Agents from an East African Medicinal Plant Erythrina abyssinica

Nakanishi, Koji, S. Kamat, Vinayak, Y. Chuo, Frances, Kubo, Isao

Journal:

Year:

1981

Language:

english

File:

PDF, 131 KB

english, 1981

10

The N-O-O Triangu-lation Hypothesis-An Assessment After One Decade

Cheng, Chia-Chung, K. Y. Zee-Cheng, Robert

Journal:

Year:

1981

Language:

english

File:

PDF, 199 KB

english, 1981

11

Synthesis and Cycloaddition Reactions of 1,3-Diphenyl-2,8-dihydrobenzo[e,h]-8-thiaazulen-2-one(Thiaazulenocyclone) with Acetylenes, Olefins and Benzyne

Hori, Mikio, Kataoka, Tadashi, Shimizu, Hiroshi, Okitsu, Mitsuhito

Journal:

Year:

1981

Language:

english

File:

PDF, 125 KB

english, 1981

12

The Preparation and Rearrangement of 1-Prenylindoles and 3-Prenylindolenines

J. Baird, Kenneth, F. Grundon, Michael, M. Harrison, David, Gerard Magee, M.

Journal:

Year:

1981

Language:

english

File:

PDF, 107 KB

english, 1981

13

Photoarylation. II. Photoreaction of Halopyridines with Benzene

Terashima, Masanao, Terashim, Masanao, Seki, Kohichi, Yoshida, Chihiro, Kanaoka, Yuichi

Journal:

Year:

1981

Language:

english

File:

PDF, 96 KB

english, 1981

14

Photocontrol of Chiral Recognition by Capped Cyclodextrin

Osa, Tetsuo, Ueno, Akihiko, Saka, Rumiko, Takahashi, Keiko

Journal:

Year:

1981

Language:

english

File:

PDF, 78 KB

english, 1981

15

Synethetic Studies of Withanolides. Part 3. Some Approaches for the Side-Chain Lactone Synthesis by Means of g-Coupling of Lithium Dienolates with the Steroidal 22-Aldehydes

Ikekawa, Nobuo, Ishiguro, Masaji, Hirayama, Masao, Saito, Hiromitsu, Kajikawa, Akira

Journal:

Year:

1981

Language:

english

File:

PDF, 297 KB

english, 1981

16

Propellanes. LVII. Reaction of an OpticallyActive Tetraenic Propellane Imide with an Optically Active Substituted Triazolinedione

Ginsburg, David, Peled, Michael

Journal:

Year:

1981

Language:

english

File:

PDF, 124 KB

english, 1981

17

C-13 Spin-Lattice Relaxation Times of Quercetin and Rutin

Takeuchi, Yoshito

Journal:

Year:

1981

Language:

english

File:

PDF, 89 KB

english, 1981

18

Studies in Protoberberine Aikaloids XVII — Neooxyberberine Acetone

R. Govindachari, Tuticorin, R. Pai, Bantwal, Rajeswari, Sundaramurthy, Natarajan, Sankaran, Chandrasekaran, Sundaram, S. Premila, Manakkal, Charubala, Ramamurthy

Journal:

Year:

1981

Language:

english

File:

PDF, 540 KB

english, 1981

19

Substituent Effects on Acidities and Tautomeric Structures of 1-Aryl-3-ethoxycarbonyl-4-pyrazolones and Their 5-Arylazo Derivatives

Sami Shawali, Ahmad, M. Hassaneen, Hamdi, A. Hanna, Moktar

Journal:

Year:

1981

Language:

english

File:

PDF, 253 KB

english, 1981

20

Antimicrobial Agents from Higher Plants. New Synthesis and Bioactivity of Tryptanthrin(Indolo-[2,1-b]quinazolin-6,12-dione) and Its Analogues

A. Mitscher, Lester, Wong, Wai-Cheong, DeMeulenaere, Teresa, Sulko, Jerzy, Drake, Stephen

Journal:

Year:

1981

Language:

english

File:

PDF, 92 KB

english, 1981

21

a-Halo Ketones IX. A New Furan-forming Reaction

W. Warnhoff, E., W. Yerhoff, F.

Journal:

Year:

1981

Language:

english

File:

PDF, 227 KB

english, 1981

22

Intermediates in the Reactions of Oxazoles with Singlet Oxygen

H. Wasserman, Harry, E. Pickett, James, S. Vinnick, Frederick

Journal:

Year:

1981

Language:

english

File:

PDF, 94 KB

english, 1981

23

Condensation Products of the Porphyrin Precursor 5-Aminolevulinic Acid

Franck, Burchard, Stratmann, Helmut

Journal:

Year:

1981

Language:

english

File:

PDF, 102 KB

english, 1981

24

The Role of Cyclic Peroxides in the Reactions of 1,2-Diphenylcyclopropenes and Cyclobutenes with Singlet Oxygen

W. Griffin, Gary, Vaz, Caetan, Christensen, Siegfried, Lankin, David

Journal:

Year:

1981

Language:

english

File:

PDF, 330 KB

english, 1981

25

A New Toxic Fungal Metabolite, Silvaticamide from Aspergillus silvaticus

Yamazaki, Mikio, Fujimoto, Haruhiro, Ohta, Yoichi, Iitaka, Yoichi, Itai, Akiko

Journal:

Year:

1981

Language:

english

File:

PDF, 128 KB

english, 1981

26

Prenylflavonoids from the Root Bark of the Cultivated Mulberry Tree

Nomura, Taro, Fukai, Toshio

Journal:

Year:

1981

Language:

english

File:

PDF, 650 KB

english, 1981

27

The Novel Dihydrothiazolo[3,2-a]pyridinium-8-olate and Closely Related Systems: Syntheses and Reactions

Journal:

Year:

1981

Language:

english

File:

PDF, 945 KB

english, 1981