公开(公告)号：US3270293A

公开(公告)日：1966-08-30

申请号：US43308865

申请日：1965-02-16

Applicant: BELL TELEPHONE LABOR INC

Inventor： LOACH JR BERNARD C DE ,  JOHNSTON RALPH L

IPC: H01L29/864 ,  H01L29/00 ,  H03B9/12 ,  H03B9/14

CPC classification number: H03B9/145 ,  H01L29/00 ,  H03B9/12 ,  Y10S148/039

公开(公告)号：US3310858A

公开(公告)日：1967-03-28

申请号：US33018963

申请日：1963-12-12

Applicant: BELL TELEPHONE LABOR INC

Inventor： JOHNSTON RALPH L

IPC: H01L21/288 ,  H01L21/60 ,  H01L23/047 ,  H01L29/00

CPC classification number: H01L24/85 ,  H01L21/288 ,  H01L23/047 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L29/00 ,  H01L2224/45015 ,  H01L2224/45144 ,  H01L2224/45164 ,  H01L2224/45647 ,  H01L2224/48091 ,  H01L2224/48472 ,  H01L2224/48599 ,  H01L2224/4911 ,  H01L2224/49425 ,  H01L2224/85 ,  H01L2224/85203 ,  H01L2924/00014 ,  H01L2924/01006 ,  H01L2924/01014 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01042 ,  H01L2924/01047 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/10253 ,  H01L2924/19107 ,  Y10S228/904 ,  Y10T29/49179 ,  H01L2224/78 ,  H01L2924/00 ,  H01L2924/20751 ,  H01L2924/20755 ,  H01L2924/00015 ,  H01L2924/2075 ,  H01L2924/20754

公开(公告)号：US2793420A

公开(公告)日：1957-05-28

申请号：US50323055

申请日：1955-04-22

Applicant: BELL TELEPHONE LABOR INC

Inventor： JOHNSTON RALPH L ,  RULISON RAYMOND L

IPC: C07D403/04 ,  C07D501/10 ,  H01L21/00 ,  H01L21/288 ,  H01L23/04 ,  H01L23/42 ,  H01L29/00

CPC classification number: H01L23/42 ,  H01L21/00 ,  H01L21/2885 ,  H01L23/041 ,  H01L24/32 ,  H01L24/48 ,  H01L29/00 ,  H01L2224/05599 ,  H01L2224/45015 ,  H01L2224/48 ,  H01L2224/4918 ,  H01L2224/73265 ,  H01L2224/85399 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01032 ,  H01L2924/0104 ,  H01L2924/01045 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01056 ,  H01L2924/01058 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01077 ,  H01L2924/01079 ,  H01L2924/014 ,  H01L2924/10253 ,  Y10S205/917 ,  Y10T428/12528 ,  Y10T428/12646 ,  Y10T428/12674 ,  Y10T428/12722 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2924/207 ,  H01L2924/01004 ,  H01L2924/01033 ,  H01L2924/01052 ,  H01L2924/01034

Abstract: 3R-Phthalimido-1-(1'S-p-nitrobenzyloxycarbonyl-2'-methylprop-2'-enyl)- 4-oxo-2-azetidinesulfenic acid is prepared by scission of the S-C2 bond of p-nitrobenzyl 6-phthalimido-2,2-dimethylpenam-3-carboxylate-1-oxide. The sulfenic acid can be converted to desacetoxycephalosporin.