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1

Purines and triazines in the Murchison meteorite

Ryoichi Hayatsu, Martin H Studier, Leon P Moore, Edward Anders

Journal:

Geochimica et Cosmochimica Acta

Year:

1975

Language:

english

File:

PDF, 1.49 MB

english, 1975

2

[Organic Chemistry] Oxidation in Organic Chemistry, Part D Volume 5 || Oxidation of Coal

HAYATSU, RYOICHI

Year:

1982

Language:

english

File:

PDF, 3.81 MB

english, 1982

3

Trapped organic compounds and aromatic units in coals

Ryoichi Hayatsu, Randall E. Winans, Robert G. Scott, Leon P. Moore, Martin H. Studier

Journal:

Year:

1978

Language:

english

File:

PDF, 929 KB

english, 1978

4

Characterization of a complex mixture of aromatic and heterocyclic acids obtained from oxidation of lignite coal and its solvent-refined products

Robert C. Duty, Ryoichi Hayatsu, Robert G. Scott, Leon P. Moore, Randall E. Winans, Martin H. Studier

Journal:

Year:

1980

Language:

english

File:

PDF, 505 KB

english, 1980

5

Investigation of aqueous sodium dichromate oxidation for coal structural studies

Ryoichi Hayatsu, Randall E. Winans, Robert G. Scott, Robert L. McBeth, Leon P. Moore

Journal:

Year:

1981

Language:

english

File:

PDF, 656 KB

english, 1981

6

Evaluation of lignin and cellulose contributions to low-rank coal formation by alkaline cupric oxide oxidation

Ryoichi Hayatsu, Robert E. Botto, Robert G. Scott, Robert L. McBeth, Randall E. Winans

Journal:

Year:

1986

Language:

english

File:

PDF, 823 KB

english, 1986

7

The reaction of fluoroxysulfate, sof-. liith aromatic compounds: catalysis by acids

Evan H. Appelman, Louis J. Basile, Ryoichi Hayatsu

Journal:

Year:

1984

Language:

english

File:

PDF, 704 KB

english, 1984

8

Catalytic reactions in the solar nebula: Implications for interstellar molecules and organic compounds in meteorites

Edward Anders, Ryoichi Hayatsu, Martin H. Studier

Journal:

Origins of Life and Evolution of Biospheres

Year:

1974

Language:

english

File:

PDF, 620 KB

english, 1974

9

Analyses of pyrimidine and purine bases by a combination of paper chromatography and time-of-flight mass spectrometry

Martin H. Studier, Ryoichi Hayatsu, Kiyono Fuse

Journal:

Analytical Biochemistry

Year:

1968

Language:

english

File:

PDF, 233 KB

english, 1968

10

Is kerogen-like material present in coal? 2. Chromic acid oxidation of coal and kerogen

Ryoichi Hayatsu, Randall E. Winans, Robert G. Scott, Robert L. McBeth, George F. Vandegrift

Journal:

Year:

1981

Language:

english

File:

PDF, 386 KB

english, 1981

11

Is kerogen-like material present in coal? 1. Buffer-controlled permanganate oxidation of coal

Ryoichi Hayatsu, Randall E. Winans, Robert G. Scott, Robert L. McBeth

Journal:

Year:

1981

Language:

english

File:

PDF, 523 KB

english, 1981

12

Aromatic units in coal

HAYATSU, RYOICHI, SCOTT, ROBERT G., MOORE, LEON P., STUDIER, MARTIN H.

Journal:

Year:

1975

File:

PDF, 282 KB

1975

13

Characterisation of organic acids trapped in coals

HAYATSU, RYOICHI, WINANS, RANDALL E., SCOTT, ROBERT G., MOORE, LEON P., STUDIER, MARTIN H.

Journal:

Year:

1978

File:

PDF, 316 KB

1978

14

Lignin-like polymers in coals

HAYATSU, RYOICHI, WINANS, RANDALL E., MCBETH, ROBERT L., SCOTT, ROBERT G., MOORE, LEON P., STUDIER, MARTIN H.

Journal:

Year:

1979

File:

PDF, 296 KB

1979

15

Nitrogen isotope fractionations in the Fischer-Tropsch synthesis and in the Miller-Urey reaction

Chun-Chan Kung, Ryoichi Hayatsu, Martin H. Studier, Robert N. Clayton

Journal:

Earth and Planetary Science Letters

Year:

1979

Language:

english

File:

PDF, 414 KB

english, 1979

16

Origin of organic matter in early solar system—II. Nitrogen compounds

Ryoichi Hayatsu, Martin H. Studier, Atsuko Oda, Kiyono Fuse, Edward Anders

Journal:

Geochimica et Cosmochimica Acta

Year:

1968

Language:

english

File:

PDF, 963 KB

english, 1968

17

Origin of organic matter in early solar system—I. Hydrocarbons

Martin H. Studier, Ryoichi Hayatsu, Edward Anders

Journal:

Geochimica et Cosmochimica Acta

Year:

1968

Language:

english

File:

PDF, 1.52 MB

english, 1968

18

Mass spectrometry of DNP-amino acids combination with paper chromatography

Martin H. Studier, Leon P. Moore, Ryoichi Hayatsu, Sumiko Matsuoka

Journal:

Biochemical and Biophysical Research Communications

Year:

1970

Language:

english

File:

PDF, 330 KB

english, 1970

19

Origin of organic matter in early solar system—IV. Amino acids: Confirmation of catalytic synthesis by mass spectrometry

Ryoichi Hayatsu, Martin H. Studier, Edward Anders

Journal:

Geochimica et Cosmochimica Acta

Year:

1971

Language:

english

File:

PDF, 1.04 MB

english, 1971

20

Origin of organic matter in the early solar system—VII. The organic polymer in carbonaceous chondrites

Ryoichi Hayatsu, Sumiko Matsuoka, Robert G. Scott, Martin H. Studier, Edward Anders

Journal:

Geochimica et Cosmochimica Acta

Year:

1977

Language:

english

File:

PDF, 1.73 MB

english, 1977

21

Cholesterol and Related Compounds. II. Bromination of 7-Ketocholestanol and 7-Ketocholestenol

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1955

Language:

english

File:

PDF, 431 KB

english, 1955

22

Steroid Studies. X. 1 Studies on the Configuration of 22-Hydroxycholesterol from Narthecium ossifragum Huds

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1959

Language:

english

File:

PDF, 630 KB

english, 1959

23

Steroid Studies. XVII. 1 On the Absolute Configuration of C-24-Ethyl of Stigmasterol

Tsuda, Kyosuke, Kishida, Yukichi, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1960

Language:

english

File:

PDF, 573 KB

english, 1960

24

Analyses of complex mixtures of hydrocarbons by time-of-flight mass spectrometry-open tube chromatography

Studier, Martin H., Hayatsu, Ryoichi

Journal:

Analytical Chemistry

Year:

1968

Language:

english

File:

PDF, 290 KB

english, 1968

25

Cholesterol and Related Compounds. IV. Synthesis of 11-Ketocholestan-3β-ol

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1955

Language:

english

File:

PDF, 382 KB

english, 1955

26

The Anthrasteroid Rearrangement. VIII. 1 The Rearrangement of Dehydroergosterol and Δ 5,7,9(11) -Cholestatriene-3β-ol to Δ 5,7,9,22 -Anthraergostatetraen-x-ols and Δ 5,7,9 -Anthracholestatrien-x-ols

Tsuda, Kyosuke., Hayatsu, Ryoichi., Steele, John A., Tanaka, Osamu., Mosettig, Erich.

Journal:

Journal of the American Chemical Society

Year:

1963

Language:

english

File:

PDF, 880 KB

english, 1963

27

Cholesterol and Related Compounds. V. Synthesis of Aza-D-homosteroids

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1956

Language:

english

File:

PDF, 615 KB

english, 1956

28

Cholesterol and Related Compounds. I. Structure of a New Non-conjugated Cholestadienol from 7-Bromocholesterol

Tsuda, Kyosuke, Arima, Ko, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1954

Language:

english

File:

PDF, 777 KB

english, 1954

29

Cholesterol and Related Compounds. III. Conversion of Phenanthrene to Anthracene Ring System in Δ 5,7 -, Δ 6,8(9) - and Δ 5,8(9) -Cholestadienol

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Journal of the American Chemical Society

Year:

1955

Language:

english

File:

PDF, 267 KB

english, 1955

30

Steroid Studies. VI. 1 Studies on the Constitution of Sargasterol

Tsuda, Kyosuke, Hayatsu, Ryoichi, Kishida, Yukichi, Akagi, Saburo

Journal:

Journal of the American Chemical Society

Year:

1958

Language:

english

File:

PDF, 580 KB

english, 1958

31

On the Constitution of Tetrodotoxin

Tsuda, Kyosuke, Kawamura, Masaaki, Hayatsu, Ryoichi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1958

File:

PDF, 348 KB

1958

32

Uber die Konfiguration am Kohlenstoffatom-22 des naturlichen 22-Hydroxycholesterins

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1958

File:

PDF, 384 KB

1958

33

Untersuchungen uber Steroide. IX. Die Sterine aus Meeres-algen.

Tsuda, Kyosuke, Akagi, Saburo, Kishida, Yukichi, Hayatsu, Ryoichi, Sakai, Kiyoshi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1958

File:

PDF, 501 KB

1958

34

Untersuchungen der Eierstockextrakte von Kugelfischen. XI. Uber Tetrodotoxin.(2)

Tsuda, Kyosuke, Kawamura, Masaaki, Hayatsu, Ryoichi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1960

File:

PDF, 681 KB

1960

35

Sargasterol from Sargassum Ringgoldianum HARVEY

Tsuda, Kyosuke, Akagi, Saburo, Kishida, Yukichi, hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1957

File:

PDF, 313 KB

1957

36

Studies on Cholestapolyenes. V. : Synthesis of 3, 3'-Bis (3, 5, 7-cholestatriene) and Bicholestatriene B.

Arima, Ko, Hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1953

File:

PDF, 465 KB

1953

37

Transition of N-Cholestenylpyridinium Salts. II. : Partial Synthesis of 3 (^|^beta;)-Carboxycholestene-5.

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1953

File:

PDF, 746 KB

1953

38

Steroid Studies. VII. Syntheses of Sargasterol, Fucosterol, and C20-Isocholesterol.

Hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1957

File:

PDF, 951 KB

1957

39

Studies on Cholestapolyenes. II. : Structure of Bicholestatriene A.

Arima, Ko, Hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1953

File:

PDF, 734 KB

1953

40

Studies on Cholestapolyenes. I. : Syntheses of Bicholestatriene A and 7-Dehydrocholesterol.

Arima, Ko, Hayatsu, Ryoichi

Journal:

Pharmaceutical Bulletin

Year:

1953

File:

PDF, 677 KB

1953

41

Volumetric Determination of Organic Sulfur

Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1950

File:

PDF, 441 KB

1950

42

The Constituents of the Ovaries of Globefish. V

Tsuda, Kyosuke, Hayatsu, Ryoichi, Umezawa, Bunsuke, Nakamura, Takahiro

Journal:

YAKUGAKU ZASSHI

Year:

1952

Language:

english

File:

PDF, 991 KB

english, 1952

43

On the Rearrangement of N-Cholestenylpyridinium Tosylate

Tsuda, Kyosuke, Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1952

Language:

english

File:

PDF, 1.47 MB

english, 1952

44

Micro-determination of Mercury in Organic Compounds

Hirai, Michihiro, Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1950

File:

PDF, 380 KB

1950

45

Communications to the Editor

Takeda, Ken'ichi, Okanishi, Tameto, Shimaoka, Ariyoshi, Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1957

File:

PDF, 691 KB

1957

46

Microanalysis of Nitro Compounds. I

Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1951

File:

PDF, 324 KB

1951

47

Determination of Acid Amide by Micro-Kjeldahl Method

Hirai, Michihiro, Hayatsu, Ryoichi

Journal:

YAKUGAKU ZASSHI

Year:

1951

File:

PDF, 305 KB

1951