公开(公告)号：US3458312A

公开(公告)日：1969-07-29

申请号：US3458312D

申请日：1966-09-19

Applicant: IBM

Inventor： SRINIVASAN RANGASWAMY

IPC: C07C45/72 ,  C08G2/00 ,  G03F7/038 ,  G03C1/68 ,  G03F7/10

CPC classification number: G03F7/038 ,  C07C45/72 ,  C08G16/00 ,  C08G16/0206 ,  Y10S522/91

公开(公告)号：US3427241A

公开(公告)日：1969-02-11

申请号：US3427241D

申请日：1964-11-09

Applicant: IBM

Inventor： SRINIVASAN RANGASWAMY

IPC: C07C4/00 ,  C07C5/31 ,  C07C3/24 ,  C07C13/06 ,  C07C13/34

CPC classification number: C07C5/31 ,  C07C4/00 ,  C07C2601/04 ,  C07C2602/14 ,  Y10S204/912 ,  Y10S204/914 ,  C07C13/06 ,  C07C13/34

公开(公告)号：US3616361A

公开(公告)日：1971-10-26

申请号：US3616361D

申请日：1969-07-28

Applicant: IBM

Inventor： PICONE JANE M ,  SRINIVASAN RANGASWAMY

IPC: C07C47/293 ,  B01J19/12 ,  C07C45/00 ,  C07C47/28 ,  C07C67/00 ,  B01J1/10

CPC classification number: C07C45/60 ,  Y10S204/912 ,  C07C47/293 ,  C07C47/37

Abstract: THE CYCLOBUTANE CARBOXALDEHYDES THUS PRODUCED CAN BE UTILIZED AS HIGH-ENERGY FUELS. They can also be used as monomeric starting materials for preparing rigid polymers of the type shown and described in the publication to W. W. Moyes, et al., Journal Polymer Science, 1, 29 (1963).

Cyclobutane carboxaldehydes having the general formula: WHERE R1 and R2 can be H, CH3, OC2H5 and CHO, are prepared from a 3,4 dihydro-(2H)-pyran and its derivatives. A pyran derivative is exposed to actinic radiation for a time sufficient to cause the photoisomerization thereof into the corresponding cyclobutane carboxaldehydes. The reaction may be characterized as:

公开(公告)号：US3535137A

公开(公告)日：1970-10-20

申请号：US3535137D

申请日：1967-01-13

Applicant: IBM

Inventor： HALLER IVAN ,  HATZAKIS MICHAEL ,  SRINIVASAN RANGASWAMY

IPC: G03F7/039 ,  H01L21/00 ,  H01L23/29 ,  B44D1/50

CPC classification number: H01L21/00 ,  G03F7/039 ,  H01L23/293 ,  H01L2924/0002 ,  H01L2924/00

公开(公告)号：US3647656A

公开(公告)日：1972-03-07

申请号：US3647656D

申请日：1969-04-09

Applicant: IBM

Inventor： SRINIVASAN RANGASWAMY ,  HIRAOKA HIROYUKI

IPC: C07D315/00 ,  B01J1/10

CPC classification number: C07D315/00 ,  Y10S204/90

Abstract: 2-(O=),3-R-2,3-DIHYDROFURAN

ALPHA SUBSTITUTED B,$ UNSATURATED LACTONES HAVING THE GENERAL FORMULA

WHERE R IS AN ALKYL OR AROMATIC GROUP, IS PREPARED. AN ALKYL OR AROMATIC SUBSTITUTED ALKOXYFURAN IS IRRADIATED IN THE PRESENCE OF ACTINIC RADIATION EITHER IN THE VAPOR PHASE OF IN SOLUTION.

公开(公告)号：US3480441A

公开(公告)日：1969-11-25

申请号：US3480441D

申请日：1966-08-09

Applicant: IBM

Inventor： SRINIVASAN RANGASWAMY

IPC: C08J3/00 ,  C08L21/00 ,  C08L23/16 ,  C08L23/22 ,  G03F7/038 ,  G03C1/68

CPC classification number: G03F7/038 ,  C08J3/005 ,  C08J2321/00 ,  C08L9/00 ,  C08L9/06 ,  C08L21/00 ,  C08L23/22 ,  Y10S430/108 ,  C08L2666/08 ,  C08L21/02 ,  C08L9/08